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Opinion & Analysis

The Wedge Guy: Why wedge mastery is so elusive

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I have conducted numerous surveys of golfers over my 40-year golf industry career, because I have always believed that if you want to know what people are thinking, you simply have to ask them.

As a gearhead for wedges and a wedge designer over the past 30 years, most of my research and analysis is focused on these short-range scoring clubs and how golfers use them. What this research continually tells me is that most golfers—regardless of handicap–consider the wedges the hardest clubs in the bag to master. That’s because they are. I would even go so far as to say that the difficulty of attaining mastery even extends to the best players in the world.

Watching the Genesis Open this past weekend, for example, it seemed like these guys were hitting wedge approaches on nearly every hole. And while there were certainly many shots that covered the flag—like Max Homa’s approach on 18–there were also a great number that came up woefully short. Not what you would expect when a top-tier tour professional has a sand or gap wedge in their hands.

The simple fact is that wedges are the most difficult clubs in our bags with which to attain consistent shotmaking mastery, and that is because of the sheer design of the clubhead itself. For clarity of this article, I’m talking about those full- or near full-swing wedge shots, not the vast variety of short greenside shots we all face every round. To get mastery of those shots (like the tour pros exhibit every week), you simply have to spend lots of time hitting lots of shots, experimenting and exploring different techniques. There are no shortcuts to a deadly short game.

But today I’m talking about those prime opportunities to score, when you have a full- or near-full swing wedge into a par-five or short par four. We should live for those moments, but all too often we find ourselves disappointed in the outcome.

The good news is that’s not always all your fault.

First of all, you must understand that every wedge shot is, in effect, a glancing blow to the ball because of the loft involved. With 50 to 60 degrees of loft—or even 45 to 48 degrees with a pitching wedge—the loft of the club is such that the ball is given somewhat of a glancing blow. That demands a golf swing with a much higher degree of precision in the strike than say, an 8-iron shot.

I have always believed that most golfers can improve their wedge play by making a slower-paced swing than you might with a longer iron. This allows you to be more precise in making sure that your hands lead the clubhead through impact, which is a must when you have a wedge in your hands. Without getting into too much detail, the heavier, stiffer shaft in most wedges does not allow this club to load and unload in the downswing, so the most common error is for the clubhead to get ahead of the hands before impact, thereby adding loft and aggravating this glancing blow. I hope that makes sense.
The other aspect of wedge design that makes consistent wedge distance so elusive is the distribution of the mass around the clubhead. This illustration of a typical tour design wedge allows me to show you something I have seen time and again in robotic testing of various wedges.

Because all the mass is along the bottom of the clubhead, the ideal impact point is low in the face (A), so that most of the mass is behind the ball. Tour players are good at this, but most recreational golfers whose wedges I’ve examined have a wear pattern at least 2-4 grooves higher on the club than I see on tour players’ wedges.

So, why is this so important?

Understand that every golf club has a single “sweet spot”–that pinpoint place where the smash factor is optimized—where clubhead speed translates to ball speed at the highest efficiency. On almost all wedges, that spot is very low on the clubhead, as indicated by the “A” arrow here, and robotic testing reveals that smash factor to be in the range of 1.16-1.18, meaning the ball speed is 16-18% higher than the clubhead speed.

To put that in perspective, smash factor on drivers can be as high as 1.55 or even a bit more, and it’s barely below that in your modern game improvement 7-iron. The fact is—wedges are just not as efficient in this measure, primarily because of the glancing blow I mentioned earlier.

But–and here’s the kicker–if you move impact up the face of a wedge just half to five-eights of an inch from the typical recreational golfer’s impact point, as indicated by the “B” arrow, smash factor on ‘tour design’ wedges can be reduced to as low as 0.92 to 0.95. That costs you 40 to 60 feet on a 90-yard wedge shot . . . because you missed “perfect” by a half-inch or less!

So, that shot you know all too well—the ball sitting up and caught a bit high in the face—is going fall in the front bunker or worse. That result is not all your fault. The reduced distance is a function of the diminished smash factor of the wedge head itself.

That same half-inch miss with your driver or even your game-improvement 7-iron is hardly noticeable.

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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, sets of irons and drivers, and in 2014, he put together the team that reintroduced the Ben Hogan brand to the golf equipment industry. Since the early 2000s, Terry has been a prolific writer, sharing his knowledge as “The Wedge Guy”.   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.

8 Comments

8 Comments

  1. Pingback: The Wedge Guy: What really makes a wedge work? – GolfWRX

  2. Pingback: The Wedge Guy: Re-think mid-range wedge shots – GolfWRX

  3. Jack Nash

    Mar 8, 2021 at 9:30 am

    My favorite clubs in the bag. Plenty of practice and “willing” to try a shot that you’re not normally comfortable with will give you confidence in the long run. One thing the Best wedge players have is a great imagination. That’s something that you can’t teach but can get close to with, again, plenty of range practice. Many times I’ll practice a min. of an hour just with 3 wedges. Practice, practice, practice.

  4. Cecil B Jansen

    Mar 1, 2021 at 2:13 pm

    So here’s the heads-up for new wedge development – particularly for the “average” golfer.
    Wedges with more oomph in the face area most likely struck by “average” golfers.
    I’m working on it…………..

  5. Aksel Nielsen

    Feb 26, 2021 at 2:13 am

    Smash factor of 1.55 om driver ? What driver are u using ?

  6. ChipNRun

    Feb 25, 2021 at 2:02 pm

    Terry,

    Good detail in article, the A-B diagram shows clearly what golf tipsters have been hint at for years.

    As for possible solutions: In 2016, the Vokey SM6 model came out with the Progressive Center of gravity. For PW and GW, Center of Gravity is about where the A is in the diagram. For SW, CoG is slightly below the B, but certainly higher on face. The LW CoG is slightly above the B.

    So, has Vokey come up with a solution to the problem?

    BUT, in 2018 when Hogan redid their Equalizer wedges, H went the other way: On 48*, 50* and 52*wedges, H went with higher center of gravity so golfers could hit more piercing full shots. Sand wedges: middle C0G… and LWs, low CoG so players could hit high shots that stop in part from high descent angle.

    So, can you say whether Vokey or Hogan has the “best ideas?”

    • ChipNRun

      Feb 25, 2021 at 2:05 pm

      P.S. Tom Wishon came up with the idea (circa 2014?) of a slightly higher CoG in one of his wedge models. But, I can’t find the discussion online.

      • Ben

        Feb 26, 2021 at 9:08 am

        Seems that the 979SS irons have a lower CoG for longer irons indeed.

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Opinion & Analysis

2023 PGA Championship: Interview with Jeff Corcoran, MGCG

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As ticket-holders exit their shuttles and enter the main gate to Oak Hill Country Club this May, their eyes will be attracted to so many sights. The 100-year old, Tudor-style clubhouse, designed by Thompson, Holmes, and Converse (of New Tammany Hall fame in New York City) catches and holds many glances. The market boardwalk will feature emporia of food, drink, and memories, all featuring the designs and flair of marketing teams. It’s a lot to take in.

Most attendees won’t enter the clubhouse, and their time along the merchandise promenade will be restricted to acquisition of souvenirs and sustenance. The majority of their time will be spent in the rough, adjacent to tees, greens, and fairways. Their eyes will roll across the hills of Pittsford’s jewel, but they might be forgiven if they don’t consider exactly how the course and surrounds came to reach this pinnacle of preparation.

Fortunately for them, we’ve tracked down the gentleman who knows more about Oak Hill’s preparation than any other. Mr. Jeff Corcoran is the Manager of Golf Courses and Grounds at the venerated New York state club.

GolfWRX: We’ve introduced you already in your current role. Please tell us how you met golf and golf course maintenance, and what the a-ha moment was that this would be your career.
Corcoran: I started playing golf when I was about 9 years old, a friend and his father took me golfing, and I was hooked. I started playing every chance that I could get and that eventually lead me to a job when I was 13 years working on a public golf course in my hometown of Groton, NY called Stonehedges Golf Course. Working on the golf course was an end to a means, as it allowed me the opportunity to play a significant amount of free golf. I enjoyed working at the golf course so much, that I eventually figured out that I could go to college to study Turfgrass Management. I pursued that endeavor and eventually my way to SUNY Cobleskill and then Penn State University.
GolfWRX: Please trace your career path, from your first job in the industry to your current one.
Corcoran: As stated above my first job in the industry was working at Stonehedges Golf Course as a teenager. While I was in college I worked at the Robert Trent Jones Golf Course at Cornell University, and eventually made my way to Oak Hill Country Club as an intern in 1994. I graduated from Penn State in ’95 and I came back to Oak Hill to work the ’95 Ryder Cup and soon after was made a 2nd assistant. While I was at Oak Hill I was fortunate enough to meet my mentor, Paul B. Latshaw, and I became his first assistant until I left to take my first superintendent position in 2000. My first superintendent position was at The Weston Golf Club which is located just outside of Boston. I was there until 2003, when I was asked to interview for my current position at Oak Hill, as Paul Latshaw had moved on to Muirfield Village. I have been at Oak Hill ever since, and in way or another have been a part of every championship held at Oak Hill since that ’95 Ryder Cup.
GolfWRX: The 2023 PGA Championship will be the 4th at Oak Hill’s East course, but it will be unlike the previous three. How did the course play, from your acquired knowledge, for those first three championships?
Corcoran: I can’t really speak to the 1980 Championship; however, I have a considerable knowledge of how the East Course played for the ’03 and ’13 PGA Championships. In ’03 the East Course went through a renovation performed by Tom Fazio/Tom Marzolf, where all of the bunkers were renovated and relocated to areas where they would affect playability of the professional golfer. Additionally, a considerable amount of length was added to the East Course prior to the ’03 Championship. The Fazio/Marzolf renovation had a significant impact on the playability of the East Course, and it proved difficult to the tour professional of the time. Ten years later in ’13 we held the championship again, and the course was essentially the same as it was in ’03. We didn’t really add any length or adjust any bunkers, however the tour professionals’ game had adjusted and improved significantly in that same 10-year period. In 2013, we had significant rainfall during the week, which softened the golf course, and the scoring for the event reflected the softer, easier conditions.
GolfWRX: Andrew Green’s 2019 restoration returned much of the course to its architectural roots. What will stand out most for those who have attended or competed in prior championships?
Corcoran: If I were to venture a guess that the most noticeable aspect for many individuals will be the reduction in the amount of trees on the East Course. We have been reducing the amount of trees on the East Course for 20+ years, however during the renovation we hit a point where the value of the tree removal hit a critical point where the vistas and views throughout the East Course were impacted in a way that allowed much more enjoyment of the property and its features. For the competitors, I believe they will also notice the severity of the Andrew’s bunker style combined with the ability to take the pin position out to the extremities of the greens. There will be many more pin locations in 2023 that will have a very close proximity to the hazards.
GolfWRX: Speaking of restorations, how was the Oak Hill grounds crew involved in the East Course’s return to its legacy?
Corcoran: The grounds crew was involved in every aspect of the renovation and worked directly with Andrew Green and LaBar Golf Renovations to ensure the product that was produced on the East Course was representative of Oak Hill and the legacy of the East Course.

GolfWRX: Tell us a bit about the re-invention of the fifth hole. What sort of hole did it replace, and how does it join itself to the course’s Donald Ross roots?

Corcoran: Andrew always indicated that he wasn’t designing anything on the East Course, that we was just taking what Donald Ross had designed and was tweaking it. With regard to our current 5th hole, Andrew drew inspiration from the original 6th hole, which was a classic Donald Ross heavily bunkered par-3. We fortunately had a considerable amount of pictures of this hole, and Andrew utilized them during his design phase. Additionally, Andrew made more than one visit over to our West Course and looked at our 4th hole, which is also a classic heavy bunkered par-3. The difference between our original 6th hole and the new 5th hole that Andrew produced is the location, and this is where the brilliance of Andrew Green came into play. Andrew tucked the new 5th green into the northwest corner of the property and it looks as though it has been there since day #1. To be able to achieve that immediate impact and value, really demonstrated his true genius.
GolfWRX: What will the final two months of preparation (April-May) demand from you and your staff?
Corcoran: I think that Mother Nature will hold the answers to the last 2 month of preparation, however it will be demanding and difficult. I anticipate that the my staff will work a considerable amount of hours, and we will do whatever is necessary to ensure that the playing conditions for the PGA Championship are exemplary.
GolfWRX: The weather for the championship week is anyone’s guess. A cold front came arrived in Tulsa last year, for the 2022 playing at Southern Hills. Ironically, Rochester’s temperatures that weekend were the warmer ones! How does your game plan change for unseasonable (both colder and warmer) weather and temperatures?

Corcoran: Our game plan doesn’t really change at all based upon the temperature. There are inherent agronomic aspects that need to happen to be successful, and some of that depends on the temperature and some of it doesn’t. Our focus is to plan for those aspects that we can control, and have a plan to react to any variables that are throw at us as we prepare.

GolfWRX: What question haven’t I asked, that you would love to answer? Please ask it and answer it. Thank you for your time.

Corcoran: “What is the most important aspect of your job as you prepare for the 2023 PGA Championship?”
The most important aspect of my job is building, taking care of, and facilitating our team that comprises golf course maintenance staff at Oak Hill. Without those individuals the championship doesn’t happen, and they will work a tremendous amount of time to ensure that golf course is ready for a spring championship. I am very proud of our team members, and I am extremely excited that their product will get the opportunity to shine on the world stage.
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Instruction

The Wedge Guy: What really needs fixing in your game?

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I always find it interesting to watch how golfers interact with the practice range, if they do so at all. I certainly can figure out how to understand that some golfers just do not really want to get better — at least not enough to spend time on the practice range trying to improve.

What is most puzzling to me is how many golfers completely ignore the rationale for going to the range to at least warm up before they head to the first tee. Why anyone would set aside 4-6 hours of their day for a round of golf, and then not even give themselves a chance to do their best is beyond me. But today, I’m writing for those of you who really do want to improve your golf scores and your enjoyment of the game.

I’ve seen tons of research for my entire 40 years in this industry that consistently shows the number one goal of all golfers, of any skill level, from 100-shooter to tour professional, is simply to hit better golf shots more often. And while our definition of “better” is certainly different based on our respective skill level, the game is just more fun when your best shots happen more often and your worst shots are always getting better.

Today’s article is triggered by what we saw happen at the Valspar tour event this past Sunday. While Taylor Moore certainly had some big moments in a great final round, both Jordan Spieth and Adam Schenk threw away their chances to win with big misses down the stretch, both of them with driver. Spieth’s wayward drive into the water on the 16th and Schenk’s big miss left on the 18th spelled doom for both of them.

It amazes me how the best players on the planet routinely hit the most God-awful shots with such regularity, given the amazing talents they all have. But those guys are not what I’m talking about this week. In keeping with the path of the past few posts, I’m encouraging each and every one of you to think about your most recent rounds (if you are playing already this year), or recall the rounds you finished the season with last year. What you are looking for are you own “big misses” that kept you from scoring better.

Was it a few wayward drives that put you in trouble or even out of bounds? Or maybe loose approach shots that made birdie impossible and par super challenging? Might your issue have been some missed short putts or bad long putts that led to a three-putt? Most likely for any of you, you can recall a number of times where you just did not give yourself a good chance to save par or bogey from what was a not-too-difficult greenside recovery.

The point is, in order to get consistently better, you need to make an honest assessment of where you are losing strokes and then commit to improving that part of your game. If it isn’t your driving that causes problems, contain that part of practice or pre-round warm-ups to just a half dozen swings or so, for the fun of “the big stick”. If your challenges seem to be centered around greenside recoveries, spend a lot more time practicing both your technique and imagination – seeing the shot in your mind and then trying to execute the exact distance and trajectory of the shot required. Time on the putting green will almost always pay off on the course.

But, if you are genuinely interested in improving your overall ball-striking consistency, you would be well-served to examine your fundamentals, starting with the grip and posture/setup. It is near impossible to build a repeating golf swing if those two fundamentals are not just right. And if those two things are fundamentally sound, the creation of a repeating golf swing is much easier.

More from the Wedge Guy

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Golf's Perfect Imperfections

Golf’s Perfect Imperfections: Great debut for Savannah at the WLD opener + Hideki’s driver grip

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A great start for Savvy in her second season competing in the World Long Drive Organization! We talk about the whole experience and we also take a look at the Katalyst suit and how our training sessions are going. Plus we speculate why Hideki is experimenting with a putter grip on a driver, thanks to GolfWRX’s Ben and Brian help.

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