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The Wedge Guy: More things that make me go “hmm?”

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As you might imagine, playing golf as long as I can remember in life – and then tacking on 40 years in the golf equipment industry – has given me a broad perspective on the evolution of golf clubs and the game we play. And those six decades of observation and experience have not yielded a shortage of things that make me scratch my head and think…”Wonder why that is?”

Of course, beginning golf in the 1950s and developing into a pretty good teenage golfer in the 1960s meant that I learned with persimmon woods, forged blade irons, and balata balls – that’s all there were back then.

Over those 40-plus years in the golf equipment industry, I have observed the evolution of all our clubs from those earlier “states of the art.”  No one then would have imagined the technology we now see in drivers, irons, putters, and shafts. But all that technology leaves me scratching my head all too often; I would like to share just a few of those puzzling observations and get your take on them, OK?

What really makes today’s drivers so much longer?

It is impossible to isolate any single technology and how much it affects driving distance. Since those days of stell-shafted persimmon, we have had quantum leaps in shaft technology, heads have gotten nearly three-times the size in volume, we have pushed perimeter weighting to the max, and we have faces of exotic metals that act like trampolines, and now the multi-material infusion of carbon fiber to further manage mass distribution. While all of those things have contributed to the distance gains, as far as the driver is concerned, my take is that it mostly boils down to two primary things.  1) Drivers are up to three ounces lighter than they were back then; that’s a weight reduction of 15-25%, so of course we can swing them faster…and clubhead speed makes the ball go further. And 2) we all swing harder than ever before because the penalty for an off-center hit has been reduced dramatically. In my opinion, all the other technologies only tweak the effect of these two advancements. What do you all think?

What is the deal with “matched sets” of irons?

From the advent of “matched sets” in the 1920s (a development pioneered by Spalding and Bobby Jones), irons have been designed so that the lowest-lofted 2-iron (now 3 or 4) through the highest loft club marked ‘P’, ‘A’ or ‘W’ all look alike. That’s always puzzled me, because the impact dynamics of a 25-degree iron are radically different from those of a 40-degree iron, and especially a club of 50 degrees or more loft.  Only recently have manufacturers begun to modify the mass distribution through the set to give higher launch angles to the longer irons and lower trajectories to the short irons, but when will they take this to the optimum and break the chains that bind – the restriction that all the irons in a set must look alike? [NOTE: I know that mixed sets have been offered and failed, so maybe it’s us golfers that won’t let them do tha]

About those adjustable drivers/fairways…

The advent of the adjustability device has completely taken over the driver category. There are no premium drivers sold today that are not adjustable, but I’ve always been puzzled by one very important aspect of this. To be truly “adjustable”, the driver shaft would have to perform in an identical fashion regardless of the position to which it has been rotated. But even the finest graphite shafts are not completely symmetrical in flex performance. In the roughly two-tenths of a second from the end of the backswing to impact, the driver head is accelerating from zero to 100+ mph, and shaft is exhibiting a lot of split-second dynamics. The fact is that those dynamics will likely change depending on the orientation of the shaft into the clubhead. The problem is that we don’t know what we don’t know about any specific shaft. I’ll leave the rest of this conundrum to your own head-scratching.

Forged blade irons vs. mainstream wedges

Being a wedge junkie, this one puzzles me the most.  Statistics indicate less than two percent of all golfers are gaming a true single-piece forged blade iron (but a large percentage of tour players still favor them).  I’ve heard all the reasons:

“The thin top line is intimidating.”

“I can’t get the ball flight I need from the lower lofts.”

“I’m not good enough to play these.”

“They are not forgiving enough.”

But yet 95 percent or more of all wedges sold are of the same design favored by the tour players. Single piece cast or forged designs, just like tour blade irons. Heavy and stiff steel shafts, just like tour blade irons. I can’t make sense of that, but with very few exceptions, that’s all the industry gives us, isn’t it?

Let me share a little secret that no one will tell you: On an “Iron Byron” swing robot, a tour blade 9-iron is much more forgiving of mishits than any of the current mainstream wedges. Does that make any sense at all?

I think I might have just opened a can of worms, and we can spend lots of time talking about this, I’m sure. And we probably should.  Please sound off with your comments on this first handful of topics, and let’s tackle some more.

Terry Koehler is a fourth generation Texan and a graduate of Texas A&M University. Over his 40-year career in the golf industry, he has created over 100 putter designs and dozens of wedges. In 2014, he put together the team that reintroduced the Ben Hogan brand to the golf equipment industry with his TK 15 wedges and Ft. Worth 15 iron designs. Since receiving a U.S. Patent for his “Koehler Sole” in the early 1990s, he has been challenging “conventional wisdom” in the wedge category. In addition to inspiring multiple companies to emulate this sole technology, the performance of his wedge designs have stimulated all other companies to reposition some mass toward the top of the blade in their wedges. Terry is retired from his role as Chairman and Director of Innovation for Edison Golf, and remains active in the industry as an independent designer and consultant.  But his most compelling work is in the wedge category. Since he first patented his “Koehler Sole” in the early 1990s, he has been challenging “conventional wisdom” reflected in ‘tour design’ wedges. The performance of his wedge designs have stimulated other companies to move slightly more mass toward the top of the blade in their wedges, but none approach the dramatic design of his Edison Forged wedges, which have been robotically proven to significantly raise the bar for wedge performance. Terry serves as Chairman and Director of Innovation for Edison Golf – check it out at www.EdisonWedges.com.

2 Comments

2 Comments

  1. Pingback: The Wedge Guy: The most important shot in golf – GolfWRX

  2. Jimmy

    Apr 12, 2025 at 8:01 am

    Drivers: Are you claiming the only reason a modern driver goes further than a persimmon is club head speed? If so that’s not what my LM says. In my experience, speed for speed a modern driver is still 10-12% longer than a persimmon/laminated wood driver.
    Matched sets: With loft jacking and the need for so many hybrids and wedges, we’re kinda close to having non-matched sets already. But I’d be open to buy totally non-matched sets if it was offered and easy to do.
    Adjustable drivers: Does shaft purring offer testable and verifiable benefits? If so, is your driver shaft pured? If the answer to either is ‘no’ then it probably doesn’t matter.
    Blade wedges: At a certain loft “forgiveness” becomes essentially irrelevant so that may be why people use them just fine. That and often times they’re not used for full swings. I’d also like to see this forgiveness test of a blade wedge vs tour blade 9 iron. I’ve seen some tests that were somewhat similar but actual, measurable forgiveness just never seems to show up. Not trying to be combative, I’d truly be interested in seeing this test and the data.

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Club Junkie

Tour Edge Exotics mini driver review + TaylorMade Spider ZT Max first look – Club Junkie

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On this episode of Club Junkie, I put the new Tour Edge Exotics Mini Driver to the test and break down the performance, forgiveness, distance, and where it fits compared to a traditional driver or strong fairway wood. If you have been curious about adding a mini driver to the bag, this one is worth a look.

I also dive into the new TaylorMade Spider ZT Max putter that was recently spotted and discuss the growing zero torque putter trend. Plus, there is a closer look at the new Project X Titan Yellow shaft showing up on the PGA Tour and what makes it different from other profiles currently out there.

 

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Opinion & Analysis

AVL: We’re talking about practice! My best tips for taking your game to the course

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With the beginning of June on the horizon and courses rounding into peak condition for the season, it’s time to hone the finer skills that often get rusty over the winter. More sunlight also means more time to get out on the course and work on your game.

Whether it’s the practice green or the driving range, there’s always something to improve—whether you’re enjoying the fresh air or preparing for a weekend game or tournament. You can work on drills or freestyle around the green, and friendly competition is a great way to sharpen your skills.

While there are endless ways to get better at golf, I’m going to focus on practicing around the green. Let’s take a look at a few things to keep in mind as we head into the summer months.

Drills

From the driving range to the practice green, it’s important to incorporate drills into your routine. Years ago, I spent a weekend working on my short game with James Sieckmann. He recommended doing drill work for 5–10 minutes, then returning to your main practice.

This way, you create a balance between structured drills and real-world scenarios, so you’re not confined to “perfect” situations. For example, hitting the same three-foot putt over and over is good for repetition, but after a while, it becomes less interactive for your brain.

My approach is to use a putting trainer with a narrow gate for the ball to pass through, or simply place tees just outside the width of the ball. I’ll hit a series of four putts through the gate for three sets. Then, from a similar distance, I’ll hit four putts without the training aid and repeat that sequence three times.

Next, I’ll hit a number of 15–25 foot putts in a random fashion, then circle back to repeat the short putt drills with and without the training aid.

This breaks up the rhythm of hitting short putts with the training aid. When you hit the same short putts over and over, it’s easy to get into a groove—which is great for the drill, but not reflective of actual course play. While finding a rhythm is fundamental for drills, I like to introduce variation with longer putts to keep things realistic.

Game Mode

Once you’ve established a foundation with drills, it’s time to simulate on-course scenarios. This is where a few practice games come in handy.

One that I’ve been enjoying lately involves putting 10- to 15-footers with two balls. If I make the putt, great! If I miss, I pull the missed ball back a putter length. Suddenly, that little tap-in becomes a nerve-wracking three-footer—at least at first. As you get better at this game, those three- and five-footers become much more comfortable and routine.

It may sound cliché, but each shot is just what it is—it’s how we react that makes the difference. I like this game because it blends the pressure of on-course putting with the consequence of leaving yourself a much longer putt than usual.

Another game I like is one I recently learned from Brad Faxon. Place three tees in a line at four different locations around the hole: one at 3 feet, one at 6 feet, and one at 8 feet. The 3- and 6-foot putts count as par, and the 8-footer is for birdie.

This game keeps you focused on scoring and helps you get into a competitive mindset. You can even think about this putting game while you’re on the course. I just started playing it, and last week I couldn’t get better than two under par.

Competition

Competition during practice is when drills and games come to life, and you start to see results. For me, nothing beats a putting contest with a friend or two. In the right setting, these contests can become talking points for the whole season.

Match play, a game of 21, or simply seeing who can make the most one-putts (with a small prize on the line) are all great ways to simulate real on-course pressure. Recently, I played in a putting contest where one competitor made back-to-back 30- and 50-foot putts. As they say, expect your opponent to make every putt—and he nearly did. That’s impressive, and it’s something you see on the course, too: you have to stay committed to your game plan, no matter what.

When it comes to practice, it’s important to blend feedback from recent rounds with the fundamentals you want to reinforce. Drills, games, and competition—from the driving range to the putting green—form the backbone of skills you’ll rely on during actual rounds.

Finding the right balance is something we’re all working on, one practice session at a time. With the beginning of June on the horizon and courses rounding into peak condition for the season, it’s time to hone the finer skills that often get rusty over the winter. More sunlight also means more time to get out on the course and work on your game. Whether it’s the practice green or the driving range, there’s always something to improve—whether you’re enjoying the fresh air or preparing for a weekend game or tournament. You can work on drills or freestyle around the green, and friendly competition is a great way to sharpen your skills. While there are endless ways to get better at golf, I’m going to focus on practicing around the green. Let’s take a look at a few things to keep in mind as we head into the summer months.

Drills

From the driving range to the practice green, it’s important to incorporate drills into your routine. Years ago, I spent a weekend working on my short game with James Sieckmann. He recommended doing drill work for 5–10 minutes, then returning to your main practice. This way, you create a balance between structured drills and real-world scenarios, so you’re not confined to “perfect” situations. For example, hitting the same three-foot putt over and over is good for repetition, but after a while, it becomes less interactive for your brain.

My approach is to use a putting trainer with a narrow gate for the ball to pass through, or simply place tees just outside the width of the ball. I’ll hit a series of four putts through the gate for three sets. Then, from a similar distance, I’ll hit four putts without the training aid and repeat that sequence three times. Next, I’ll hit a number of 15–25 foot putts in a random fashion, then circle back to repeat the short putt drills with and without the training aid.

This breaks up the rhythm of hitting short putts with the training aid. When you hit the same short putts over and over, it’s easy to get into a groove—which is great for the drill, but not reflective of actual course play. While finding a rhythm is fundamental for drills, I like to introduce variation with longer putts to keep things realistic.

Game Mode

Once you’ve established a foundation with drills, it’s time to simulate on-course scenarios. This is where a few practice games come in handy. One that I’ve been enjoying lately involves putting 10- to 15-footers with two balls. If I make the putt, great! If I miss, I pull the missed ball back a putter length.

Suddenly, that little tap-in becomes a nerve-wracking three-footer—at least at first. As you get better at this game, those three- and five-footers become much more comfortable and routine. It may sound cliché, but each shot is just what it is—it’s how we react that makes the difference. I like this game because it blends the pressure of on-course putting with the consequence of leaving yourself a much longer putt than usual.

Another game I like is one I recently learned from Brad Faxon. Place three tees in a line at four different locations around the hole: one at 3 feet, one at 6 feet, and one at 8 feet. The 3- and 6-foot putts count as par, and the 8-footer is for birdie.

This game keeps you focused on scoring and helps you get into a competitive mindset. You can even think about this putting game while you’re on the course. I just started playing it, and last week I couldn’t get better than two under par.

Competition

Competition during practice is when drills and games come to life, and you start to see results. For me, nothing beats a putting contest with a friend or two. In the right setting, these contests can become talking points for the whole season. Match play, a game of 21, or simply seeing who can make the most one-putts (with a small prize on the line) are all great ways to simulate real on-course pressure. Recently, I played in a putting contest where one competitor made back-to-back 30- and 50-foot putts. As they say, expect your opponent to make every putt—and he nearly did. That’s impressive, and it’s something you see on the course, too: you have to stay committed to your game plan, no matter what.

When it comes to practice, it’s important to blend feedback from recent rounds with the fundamentals you want to reinforce. Drills, games, and competition—from the driving range to the putting green—form the backbone of skills you’ll rely on during actual rounds. Finding the right balance is something we’re all working on, one practice session at a time.

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Equipment

Seoul Sensibilities: Is Korean golf fashion starting to shape the world?

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For Korean golfers, we always look forward to the last of the kkot-saem-chu-I for the true start of a new golf season. The term refers to a cold snap, but literally translates as “winter being jealous of the flowers beginning to bloom, thus lashing out one final time before surrendering to spring”.

A rather poetic mouthful packed into a short expression.

Koreans can be like that. Understated, yet oddly expressive at the same time. And nowhere is this more true on the golf course and in our golf bags. In fact, I suspect many Korean golfers look forward to new apparel and accessory drops more than they do actual equipment launches each year.

At this point, Korean golf fashion may exist on its own timeline. (courtesy of @seonbi_golfer)

There is ample evidence to support that suspicion. Korea is the world’s third-largest golf market behind the United States and Japan, yet its appetite for golf apparel exceeds that of both countries combined. Recent estimates suggest that Korea accounts for nearly 40 percent of the global golf apparel market, placing it among the world’s most influential golf fashion markets and punching well above its size.

Simply, we care deeply about how new golf clubs look and feel, but enjoy looking good while swinging them even more.

Golfers in the West may laugh and say that golf is played on a course, not a fashion runway. Perhaps. But what’s the harm in trying to look and feel good, if the added self-confidence can help actual performance? It certainly seems to have worked for Jason Day, who may have unlocked a new stats category: dormant strokes gained. Coincidence?

During the COVID-era, estimates placed the market near $9 billion, an astonishing figure for a single country.

As a proud member of Gen X, I’ve witnessed the highs and lows of golf fashion firsthand. The pleated trousers and wing-tipped shoes of Jack Nicklaus, the stylish plus-fours and knickers of Payne Stewart, the baggy black trousers and fitted mock-necks of Tiger Woods, and the thigh-hugging athletic tailoring of Rory McIlroy. Golf fashion, like the golf swing itself, has rarely stood still.

But nowhere have those trends shifted, evolved, and been scrutinized quite as relentlessly as in Korea. Here, golf fashion moves faster than fairway gossip, and consumers dissect brands with a level of discernment that can be both impressive and mildly terrifying. New brands are studied, judged, embraced, or dismissed with startling efficiency.

The result is a consumer base with one of the sharpest eyes for quality and authenticity anywhere in the world. It is difficult to quantify, but easy to recognize. Clean lines without trying too hard. Luxury mixed with utility. Trend awareness balanced by restraint and purpose.

It’s golf fashion shaped by one of the world’s most style-literate cities, something I like to call Seoul Sensibilities, referring to the taste level forged by a uniquely competitive environment.

And increasingly, global brands have noticed.

Many golf brands in Korea have their own flagship shops dedicated to apparel only

Titleist understood this years ago, when its apparel business in Korea took on a life of its own under new ownership and local direction. What had once been a straightforward extension of an iconic equipment giant became something sharper and more premium. By going all in on the serious Tour-player look (I couldn’t even fit into their XL sizes), Titleist struck the right chord with Korean consumers and helped its fledgling apparel business break into the mainstream. Titleist became a household name even for non-golfers who wore its caps, shirts, and windbreakers in daily life. In many ways, it proved that even heritage golf brands could carry real fashion credibility when viewed through a Korean lens.

Several years later, PXG took a page out of Titleist’s playbook and followed suit. Korean consumers helped transform the brand from one known largely for irons and loud commercials into something broader and more stylish. PXG apparel’s growth in Korea was explosive, where it found an early audience and turned the category into something more than mere logo merchandise. It is still hard to walk anywhere in Seoul without seeing its palindrome logo.

Malbon’s meteoric rise in the United States was genuine, but its ascent into a global golf lifestyle brand owes much to Korea, where it was elevated by a market already fluent in modern golf style. Korea did not simply embrace Malbon. It pressure-tested the concept, refined its appeal, and helped push it into the global spotlight.

As such, new brands may arrive from abroad, but more often than not, their sharpest evolution happens here. If a brand can earn credibility in Seoul, it’s deemed to have passed one of the toughest style audits in the game.

That is why the next meaningful chapter may not come from outside, but from a Korean brand moving in the opposite direction, carrying those Seoul Sensibilities outward as K-pop once did.

Play young Stay dope.

From Seoul, With Intent

Khalhon is a label that feels less like a trend-chasing newcomer and more like the product of a market that has already seen everything. Golfers here have long been surrounded by luxury logos, technical fabrics, and tour uniforms disguised as lifestyle wear and vice-versa. In other words, novelty alone rarely lasts here, and the Koreans seems to understand that instinctively.

Its style language leans into clean silhouettes, relaxed but tailored proportions, muted palettes, and premium materials that speak quietly but confidently. There is a modern city aesthetic running through it all, with strong layering pieces, thoughtful textures, and subtle branding that suggests sophistication rather than demanding attention.

“Built for the course. Designed beyond it.”

Most importantly, the garments seem designed to blur the line between golfwear and everyday style. Shirts, trousers, knitwear, and outer layers move comfortably between a game of screen golf, a lunch reservation, an airport gate, or an afternoon coffee in Gangnam with friends.

It raises the question of whether this is golfwear that happens to look good off the course, or everyday clothing that performs beautifully on the fairways.

Personally, I have long appreciated Nike Golf for its clean, athletic modernization of golf attire. It also has the useful side effect of making me look like a more serious golfer than I probably am. But off the course, there are times when being instantly identified as the golf guy in a crowd of non-golfers can feel a touch self-conscious.

“Built for the course. Designed beyond it.”

That is part of what drew me to Khalhon, which seemed to blend golf and everyday wear naturally. While some of the outfits may be slightly beyond my personal confidence level, the brand also offers tasteful options for older guys like me who still want to express a little personality without regretting the decision later.

These are not simply flashy outfits worn on the course and then banished to the closet until the next tee time. They work surprisingly well off the course too, and I suspect many of the pieces will still look right a couple of years from now, which would certainly be kinder to my wallet than most golf fashion trends tend to be.

And perhaps that broader lifestyle positioning also helps explain why someone like Sean Wotherspoon would find Khalhon creatively interesting in the first place.

“Built for the course. Designed beyond it.”

“Korea is not only one of the most fashion-forward golf markets in the world, but one of the most fashion-forward markets globally. Korea is ahead, and I love to watch and try to catch up.” – Sean Wotherspoon, Creative Director at Khalhon

Seoul and Beyond

If Khalhon’s rise says something about where Korean golf fashion is today, its relationship with Sean Wotherspoon says even more about where it is heading.

For readers less familiar with Sean Wotherspoon, his arrival at Khalhon is not some routine celebrity endorsement or influencer collaboration. In design and streetwear circles, Wotherspoon is regarded as one of the more influential creative voices of his generation, particularly when it comes to blending nostalgia, storytelling, and contemporary culture into products that people can connect with.

He first gained widespread attention through his now-famous Nike sneaker collaborations, where his vintage-inspired designs and instinct for color helped turn him into one of the defining artists of the late-2010s sneaker era. His work gradually expanded beyond footwear into apparel, automotive collaborations, collectibles, and broader lifestyle design.

Modern golf style now extends well beyond the fairways, where performance and functionality are largely expected by default. And while plenty of brands already make technically competent golfwear, Khalhon seems more focused on designing clothes people would genuinely want to wear even after the round ends.

And when guys at Wotherspoon’s level show genuine interest in working with a Korean golf brand as its new Creative Director, fashion circles tend to sit up and pay attention. There’s already a huge buzz among the fashion-conscious here about upcoming collabs with iconic sports stars and brands.

“My creative direction for Khalhon is disruptive, colorful, nostalgic, and modern. My goal is to blend these avenues seamlessly within each collection.” – Sean Wotherspoon

In chatting with Sean, what stood out most to me was how genuinely energized he sounded about the project itself. Despite having already worked across and countless other creative spaces, he described golf as a completely fresh category for him, saying that Khalhon “will be an amazing vehicle for my design work.”

At the same time, his enthusiasm seemed tied just as much to Korea itself. He spoke openly about admiring Korea’s fashion culture while repeatedly insisting he is still a terrible golfer.

There was something oddly refreshing about that humility. Rather than sounding like a celebrity parachuting into golf simply because the category suddenly became fashionable, Sean sounded genuinely curious about what Korea might do with the category next.

And perhaps that is what makes Khalhon feel interesting right now. The brand feels less like a trend-chaser and more like the natural result of a market now confident enough to export its own point of view.

For years, global brands came to Korea to sharpen their image against one of the most discerning audiences anywhere. Now, a Korean label appears ready to send those Seoul Sensibilities outward instead.

Which brings us back to kkot-saem-chu-i.

That final cold snap before spring always arrives with a reminder that seasons are changing, whether we notice it immediately or not. Golf fashion feels a little like that right now as well, as the old boundaries between sport, streetwear, luxury, and everyday style continue to soften.

And somewhere in Seoul, a Korean golf label already seems prepared for whatever season comes next. I just hope they have everything in my size.

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