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The Wedge Guy: St. Andrews — Where my wedge work began

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Having the Open Championship at St. Andrews this week is special to me, and a story I read yesterday about Justin Thomas and his wedges is the reason why.

It seems “Bones” McKay has suggested to Justin Thomas that he carry two lob wedges this week, one with low bounce for the tight fairway lies, and one with a higher bounce for his bunker shots. Yes, the turf at St. Andrews is that challenging. I experienced the same challenge when my late brother and I made a trip to Scotland in 1990 – over 30 years ago.

But it’s not just at St. Andrews, but on nearly every course everywhere. You can face all kinds of lies and execute all kinds of swings every round you play, right? But it was there in Scotland that I found my off-the-shelf sand wedge was just not getting it done from those tight fairways. So, on a tour of Auchterlonie’s Golf Shop, I saw a grinding wheel and had an inspiration. They agreed to let me use the grinder.

I went back to the hotel and retrieved my sand wedge, and began work on the sole design I subsequently patented…

First, I ground much of the bounce off the back of the sole, taking it down to what I later learned was only about 5-6 degrees. Then, I ground a very aggressive high bounce on the front quarter-inch or so of the sole, removing metal all the way up to the first groove as I remember. Of course, that made the leading edge and offset look very strange, so I ground off some of the bottom of the hosel to make it look at least presentable.

As you can imagine, removing that much metal made the swingweight drop like a rock, so my solution was to pack lead tape on the back of the clubhead until I had it back up to about its original D4-5 swingweight.

The result of my very first work on wedges was very impressive. The new “dual bounce sole” I had created proved very adept at the tight lies around the greens, but also totally functional from the bunkers. And the added lead tape higher in the clubhead produced noticeably more penetrating trajectories and spin like you wouldn’t believe.

Upon return to the States, I purchased several major brand wedges and took a more sophisticated approach to fine-tuning this concept, welding material to the sole and then grinding and polishing until I had it right. Once I had it where I wanted, I filed my patent application, and in 1994 was awarded “U.S. Patent #5,301,944 – Golf Club Head With Improved Sole”.

For the past thirty years, I’ve been constantly tweaking on that sole design, improving the concept ever so slightly with each iteration through wedges I’ve designed for Merit Golf, Reid Lockhart, EIDOLON, SCOR, Ben Hogan, and now Edison Golf. And with each of those wedges, I’ve also increased mass in the top half of the clubhead to optimize gear effect. And that has been proven to make wedges more forgiving, deliver improved spin and more penetrating trajectories — and to make them deadly accurate with distance control, even on your slight misses.

While today’s post is not intended as any kind of promotion for my work in wedge design, the memories of that trip with my late brother — and of my inspiration to move on from putter design to tackle the wedge category — have all come flooding back with The 150th Open Championship being played at St. Andrews and the interesting story of a tour player, his caddie, and his wedges.

I hope you all can get plenty of time in front of the TV this weekend to witness how and where this wonderful game has been played for hundreds of years. And I hope all of you will find a way to make this pilgrimage to the birthplace of golf.

It just might change your life — it certainly did change mine.

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.

1 Comment

1 Comment

  1. geohogan

    Aug 5, 2022 at 7:52 pm

    “Of course, that made the leading edge and offset look very strange, so I ground off some of the bottom of the hosel to make it look at least presentable.”

    I can relate.
    Cant stand offset. After bending all my irons to zero offset, there was so much bounce to grind away and so much lead tape to add.

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Charles Schwab Challenge Tour Report: MacIntyre, Åberg and Spaun all switch putters, TaylorMade launches new Spider

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There must be something in the water. Or potentially on the greens. A whole host of big-time players decided that the Charles Schwab Challenge was the perfect place to test out new putters.

With the 2026 U.S. Open just around the corner, defending champion J.J. Spaun made a surprising switch away from his center-shafted Df3 and into L.A.B. Golf’s OZ.1i HS – the heel-shafted mallet putter.

“Just something I kind of wanted to change the way the putter was looking, just a completely different look than the DF3 that I’ve been using for the last year and a half,” Spaun told GolfWRX about the swap. “So it’s just easier to line up for me with less onset looking design, and it’s just something I felt like switching it up and seeing how it goes.”

You can find more about the putter and the reasoning behind Spaun’s change here.

Robert MacIntyre also decided to change the flatstick at Colonial Country Club. He’s using a custom Scotty Cameron Phantom 9.5R. The Scotty team created a specially-milled face featuring horizontal grooves and shortened the plumber’s neck to increase toe hang.

Another custom feature of the build is the welded wings added to the rear of the putter, similar to those found on the Phantom 11 head.

It’s potentially part of a major overhaul to his bag. The Scot has recently switched from the Titleist Pro V1 to the Pro V1x golf ball, added the new GTS2 driver, and is currently testing a GTS 3-wood that could replace his ancient TaylorMade AeroBurner 3-wood.

Ludvig Åberg joined the trio of superstars making alterations on the greens. He’s added a Scotty Cameron Phantom 3.2.

It’s not Åberg’s first putter switch of the season. He had been using different versions of his usual Odyssey Versa #1 head to try to get better speed control on the greens.

Currently, a Tour-only offering, the Phantom 3 head is a half-moon mallet shape. Like the previous version that GolfWRX captured at the Arnold Palmer Invitational, which Åberg never put in play, the current version appears to feature the Studio Carbon Steel face insert and chain-link face milling. Instead of the all-black version one, Åberg’s current flatstick is in the metal finish.

Rico Hoey’s make-shift Jailbird

Some of the best builds on Tour have a certain Frankenstein theme to them.

Odyssey decided to do this when breeding a turtle and a bird together. The result, Rico Hoey’s latest broomstick.

The custom Jailbird S2S Tri-Hot head includes an aluminium-milled insert from the unreleased TRTL head, which the team machined down to fit the face of the Jailbird after removing the usual Ai-Dual insert.

The team also filled the wings of the putter with epoxy to redistribute mass away from the face, with the metal insert weighing more than the original.

Hoey was also spotted with a custom Damascus Milled Jailbird Mini broomstick. Check out the full gallery here.

Brant Snedeker’s full WITB 

Arguably, the PGA Tour’s feel-good story of the year so far was 45-year-old Brandt Snedeker returning to the winner’s circle for the first time in nearly 8 years.

His victory didn’t come without some equipment updates, either. The Presidents Cup Captain added the 2016 M2 driver equipped with a Fujikura Speeder Evolution 661. It’s a shaft that’s even older than the driver.

The historic driver setup might have been added because Snedeker was missing some antique vibes. He recently switched out his 2-decade-old Odyssey Rossie White Hot XG for a TaylorMade Spider Tour X.

He first put the Spider in play at the Cognizant Classic. Still, at the Valspar Championship, he tested TaylorMade’s True Path Alignment versus without, and preferred the added aim benefits he was getting. In previous testing, the biggest thing Snedeker noticed was the launch and how quickly the ball got to true roll from the Spider and its Pure Roll insert compared to anything else he had tried.

Check out Snedeker’s full what’s in the bag during this week’s episode of “Inside the Ropes” from Colonial.

 

Everything’s bigger in Texas

TaylorMade Golf chose the second stop of a Texas two-step in Dallas as the spot to launch the tour’s latest Spider putter.

On-site Monday at Colonial Country Club, GolfWRX’s Tour Photographer Greg Moore captured the new Spider ZT Max putter ahead of the Charles Schwab Challenge.

The Max version of TaylorMade’s zero-torque putter style has a larger footprint than the original ZT, which will likely lead to a higher MOI thanks to wider perimeter weighting.

The original ZT is made of high-density 303 stainless steel at the front, and then a lower-density 6061 aerospace aluminum on the back to create a high-MOI foundation, with a center shaft featuring slight forward shaft lean and 25mm onset behind the leading edge.

The Spider ZT Max also appears to use the ZT cambered sole, which is also seen on the recently Tour-launched Spider Tour, Tour X, F and V models, which were first spotted at the RBC Heritage.

Brian Harman gamed the original Spider ZT for his victory last year at the 2025 Valero Texas Open, and the putter also saw victory on the DP World Tour in the hands of Michael Kim for his FedEx Open de France win.

Check out the full gallery here.

Odds and Ends

Project X officially Tour launched the Titan Yellow shaft, just a few days after Wyndham Clark played it for the first time and won The CJ Cup Byron Nelson. The shaft features a smoother feel in the handle compared to past Project X wood shafts, along with a firm midsection and firm tip. The Synex Technology allows a player to feel more load in transition without losing the feel of the clubhead. Titleist launched the GTS300 back at Quail Hollow, and just a few weeks later, it’s in the bag of Justin Thomas. Could this be a test run for Shinnecock?

 

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Tour Photo Galleries

Photos from the ShopRite LPGA

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GolfWRX Tour Photographer Greg Moore was on site in Galloway, New Jersey, ahead of the ShopRite LPGA powered by Wakefern to snap some WITB photos and more.

Check out links to all the photos below!

General Albums

WITB Albums

Pullout Albums

 

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Club Junkie WITB, week 18: Driver still needs a grip!

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Back again for week 18 with another new bag for this week’s league night! Last week I played well but lost so hoping to get back on the winning side of things. I am pretty excited to get this driver out on the course as I think it is a legit sleeper in the category. It is also time to break out some newly built irons from JP Golf that look awesome and hopefully play just as good! Here is what is in the bag this week.

Driver: PXG Lighting Tour-Mid (10.5 degrees)
Shaft: Fujikura Ventus TR Red 6s

4-wood: Wilson Dynapwr Carbon (16.5 degrees @ 16)
Shaft: Fujikura Ventus Red 7s

Hybrid: Callaway Apex Ti Super Hybrid (21 degrees @ 20)
Shaft: Fujikura Ventus HB Red 9x

Utility: Mizuno JPX One (22 degrees @ 23)
Shaft: Mitsubishi Tensei 1K Black 85s

Irons: JP Prime (5-PW)
Shafts: UST Mamiya Dart V 105 F5

Wedge: Cleveland RTZ (50-10 MID)
Shafts: KBS C-Taper Lite 110 s

Wedge: Cleveland RTZ (56-10 MID)
Shafts: KBS C-Taper Lite 110 s

Wedge: Cleveland RTZ (50-8 ADAPT)
Shafts: KBS C-Taper Lite 110 s

Putter: Mizuno M.Craft City Osaka
Shaft: TPT Pulse 50

Ball: PXG Xtreme Tour

Bag: Ghost Anyday Black Ops Stand Bag

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