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Sweet Spot? Triple Play? Examining the Callaway Apex combo set options

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The combo set is not a new concept, and Callaway has been doing de-facto combo sets for a number of iron generations.

However, with the Apex 21 line of irons, Callaway decided to take the combo concept to another level, making a major investment in tooling and precisely calibrating loft, life, bounce, and blending in the Apex 21 irons to allow for uniform set makeup.

For Callaway, it was a serious endeavor and a thoughtful effort at the front end to design a family of irons for ease of combination, rather than an assemblage of combinations at the back end.

“With the rise of custom fitting, we knew we wanted to go beyond just a traditional combo set. By creating dedicated models and specialized tooling, we are making the transition to combo sets a seamless experience. It shows our dedication and leadership position in irons.”

–Dave Neville, Sr. Director, Brand & Product Management

Callaway offers a “menu” of four combo sets using ingredients from the Apex iron family — Apex DCB, Apex 21, Apex Pro 21, Apex MB.

Michael Vrska, Callaway’s Director of Custom Fitting & Player Performance, says the decision to offer four sets in general and their specific makeups was arrived at after lengthy discussions with the company’s network of fitters and the R&D team, as well as a close look at past iron sales and custom fitting data.

“Working with the R&D team to understand how they thought the different AI face designs, sole configurations, specs and other design details could be best blended together started the process, but working with our National Fitters Board and other top club fitters across the country was key to creating the four sets. We then used custom sales data and additional feedback from our internal fitting team to fine tune. I’m proud of the work we did and it’s been exciting to see positive the feedback from golfers about these new fitting options.” — Michael Vrska, Callaway’s Director of Custom Fitting & Player Performance

Sweet Spot

The first of Callaway’s four combo sets is targeted toward players who need more help in the long irons, the “Sweet Spot” combo features the Apex DCB in 4 and 5-irons and Apex 21 in 6-AW. It’s designed to offer maximum distance and forgiveness in the longest irons.

Mixed

According to Callaway, the “Mixed” set player is generally a mid-handicap who struggles to hit long irons but doesn’t want to replace long irons with hybrids. The Mixed includes Apex 21 in 3 through 7-irons and Apex Pro in 8-iron through A-wedge.

Triple Play

The “Triple Play” generally appeals to a similar player as the Mixed but one with a preference for more technology and a more compact look at address in the scoring clubs. It features Apex DCB (4-5), Apex 21 (6-9) and Apex Pro (PW-AW).

Player

Offering true blades in the scoring clubs, the “Player” combo set, appropriately, is designed for the better player. Outfitted with taper tip shafts throughout, the Player set is composed of Apex Pro irons in 3-7 and Apex MB in 8-AW.

The most popular of the new Callaway combo sets, according to Neville, is the Apex Mixed. The Mixed, again, features the Apex 21 in 3 through 7-iron and the Apex Pro in 8-iron through A-wedge.

Roughly 15 percent of Callaway’s full iron set orders are for combo sets. But with the embrace of customization generally, the continued growth of custom fitting, and fitters familiarizing themselves with the new “menu” — and who is best suited for each “dish” — that percentage will grow.

Ultimately, the Callaway combo set options — and the introduction of the Apex DCB — are evidence of the company’s commitment to offering not only viable irons but an optimal set makeup for every golfer.

For more details, and answers to the questions we know WRXers want to ask, we spoke with Michael Vrska.

GolfWRX: For the combo set, how does adjusting the lofts weak or strong affect the bounce? Will it affect playability?

MV: For the Apex Pro heads in the Mixed and Triple Play sets we actually do separate tooling for those, so the lofts are adjusted independently from bounce during the design phase. For the other Apex heads in the other combo sets we need to bend to get loft dialed in, we limit that to one degree so turf interaction differences are minimized. And remember, loft and bounce changes are a one-to-one ratio. One degree stronger loft equals one degree less bounce and vice versa.

GolfWRX: For the higher handicapper, is it more effective to have short irons that launch higher and land steeper, or is there a method to bringing down trajectory?

MV: For higher handicaps with slower swing speeds, they typically don’t generate a lot of spin on their own, so yes, descent angle and peak height are optimized so the player can still carry the ball far enough and limit roll out, though spin is still a factor to that player in terms of ball flight. On the other hand, some higher handicap players swing very fast and generate a lot of spin, but controlling that spin or having consistent contact may be more of their issue. And this is a good example of why we don’t like to fit for handicap, but we strongly recommend players get fit for their club delivery and ball flight. There are many different ways to become a 19-handicap, or a 2-handicap for that matter.

GolfWRX: For players who are married to taper tip shafts like Dynamic Gold. How do those shafts work in parallel hosels?

MV: Taper tip shafts work great in parallel hosels for those that want that. We can assemble taper tip shafts in both taper and parallel hosels and there are some players who love a shaft model that is only available in a taper tip. It doesn’t work the other way though. Parallel tip shafts do not work in taper tip hosels without boring them out, which is not something we generally recommend at it can negatively impact the structural integrity of the hosel.

GolfWRX: How do you optimize spin with the higher launching faster heads? Is it addressed through descent angle?

MV: Descent angle certainly matters, but we don’t like to put too much focus on any one single factor. For every player type and iron set we look at speed, launch angle, descent angle, peak height and spin to maximize distance, with proper gapping, and also to make sure iron shots will hold the green. There is no one size fits all answer to that. It’s why we offer multiple Apex sets, multiple Apex combo sets and recommend all golfers get fit.

 

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3 Comments

3 Comments

  1. Pingback: Best irons in golf 2023: The shotmakers – GolfWRX

  2. Kevin

    Jun 16, 2021 at 11:31 pm

    I think it’s because they came out with the TCB which is basically the same. Disappointed this article didn’t mention them. In Europe they have the “Elite” combo which is the TCBs and the MBs.

  3. Roy

    Jun 15, 2021 at 11:35 pm

    Any ideas on why the X forged CB is getting such little push from callaway. Know several people who game it and all love it

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Equipment

Spotted: Tony Finau’s driver shaft change at the 2024 Texas Children’s Houston Open

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Tony Finau has always been known as one of the longest players on the PGA Tour, but he has recently been working on adding a little more distance. Last year, Finau averaged 118.3 mph club head speed and 178.08 mph ball speed, all while playing a Mitsubishi Diamana D+ Limited 70 TX driver shaft. This year, he has increased his club head speed to 123.93 mph and his ball speed to 183.32 mph.

However, Finau’s overall distance has decreased by two yards in that time. From a fitting perspective, something was amiss. We asked Tony about the shaft change at the Texas Children’s Hospital Open.

“[I’m seeing] better numbers with the spin. My driver’s been a little high spin for me over the last month or so, and so I just figured it was time to probably check out the equipment,” Finau said. “And it definitely showed me that I was using a shaft that’s maybe a little too tip-stiff for me, the way I load the club now. [I’m seeing] better numbers with the spin.”

Finau switched from the Mitsubishi Diamana D+ Limited 70 TX into the Diamana GT 70 TX. The newer Diamana GT has a slightly different profile than the D+ Limited with the stiffest handle section in the Diamana lineup. The mid sections between the two are similar stiffness but the tip is just slightly stiffer in the Diamana GT. Both shafts are within one gram of each other in the 70 TX. The torque rating on the GT is 0.1 higher than the D+Limited’s 2.7 measurement.

Mitsubishi lists the Diamana GT as a shaft between the mid-launching Diamana TB and the new low-launch Diamana WB shafts. For most players, it would be considered a mid/low launch and low-spin shaft option. Mitsubishi’s Xlink Tech Resin System makes sure the maximum carbon fiber content is there for smooth feel without reducing the strength of the shaft. MR70 carbon fiber is used for reinforcing the shaft and boron is used in the tip for its high strength and compression properties.

Finau is still using his trusty Ping G430 LST driver in 9 degrees and has the adjustable hosel set to -1 degree of loft (standard lie angle). Finau’s long-time favorite Lamkin UTX Green grip is installed. He definitely has a few extra wraps of tape under that grip as you can see the bulge down where the grip meets the shaft.

One final note: Per Ping’s PGA Tour rep Kenton Oates, Finau’s driver is also adjusted to play one degree upright to help dial in his desired launch.

We’ll see how he fares with the new setup this week in Houston!

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Whats in the Bag

Zac Blair WITB 2024 (March)

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Driver: Titleist TSR2 (10 degrees, A1 SureFit setting)
Shaft: Fujikura Ventus TR Red 6 X

3-wood: TaylorMade M5 Rocket 3 (14 degrees)
Shaft: Fujikura Speeder 757 Evolution V1 X

Utility: Titleist U510 (3)
Shaft: Aldila Tour Blue 85 X

Irons: Ping i210 (4-6), Miura MB-001 (7-9)
Shafts: Nippon N.S. Pro Modus3

Wedges: Titleist Vokey Design SM10 (46-10F, 58-08M @57, 60 @61), Vokey Design WedgeWorks (52-M)
Shafts: Nippon N.S. Pro Modus3 Tour 105 X

Putter: Scotty Cameron prototype

Grips: Golf Pride Tour Velvet

Ball: Titleist Pro V1

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Whats in the Bag

Martin Trainer WITB 2024 (March)

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Driver: Wilson Staff Staff Model (6.5 degrees)
Shaft: Mitsubishi Kai’li Blue 70 TX

3-wood: Wilson Staff WLabs Prototype (13 degrees)
Shaft: Mitsubishi Tensei CK Orange 80 TX

Irons: Wilson Staff Staff Model (2, 4-9)
Shafts: True Temper Dynamic Gold Tour Issue X100

Wedges: Wilson Staff Staff Model (52, 56, 60)
Shafts: True Temper Dynamic Gold Tour Issue X100

Putter: Bobby Grace Greg Chalmers Prototype

Grips: Golf Pride Tour Velvet

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