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Three Callaway GBB Epic drivers appear on USGA Conforming Club List

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Three new Callaway drivers have appeared on the USGA’s Conforming Club List: the GBB Epic, the GBB Epic Star and the GBB Epic Sub Zero.

Callaway isn’t commenting on the new Great Big Bertha (GBB) drivers at this time, so we can’t officially confirm or deny any details about the new drivers. We do anticipate that one or more of the driver models could be in play this week at the Hero World Challenge in the Bahamas, however, where they will be permitted for us. We also can point out a few things based on the USGA’s black-and-white photos.

GBB Epic

Callaway_GBB-Epic

GBB Epic Star

8_Nov_mono02

Based on the photos, it appears the GBB Epic and GBB Epic Star are virtually identical, with the exception being the lack of an adjustable hosel on the GBB Epic Star.

Both drivers appear to use a technology called “Jailbreak,” which is highlighted on the front of the driver’s sole. The technology is rumored to connect the sole and crown of the drivers, adding reinforcement that improves energy transfer.

On the other end of the sole is a sliding weight that enables golfers to select a draw, fade or neutral trajectory bias. There are also what seem to be carbon fiber inserts on the soles of all three driver models. Carbon fiber is lighter than titanium, and its use presumably enhanced the ability of Callaway engineers to optimize the weighting of the driver heads for improved performance.

GBB Epic Sub Zero

Callaway_GBB_Epic_Sub_Zero

Instead of a sliding weight track, the GBB Epic Sub Zero has two adjustable weights — one on the front of the sole, and one on the back. That reminds us of Callaway’s XR ’16 Sub Zero driver, which is the company’s current ultra-low-spin driver. It design targets better golfers, and was used in 2016 by Phil Mickelson.

The Sub Zero got its name from its center of gravity position (CG), which Callaway says is below the neutral axis line, or “sub zero.” The XR ’16 Sub Zero uses a what Callaway called a Carbon Triax Crown, an extremely thin, lightweight composite material on the top of the driver that the company said enabled its sub zero CG location.

What are GolfWRX Members saying about the new drivers? Join the discussion in our forum. 

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18 Comments

18 Comments

  1. westphi

    Dec 4, 2016 at 12:56 pm

    When is this going to be released in stores?

  2. Red Regal

    Nov 29, 2016 at 6:42 am

    Callaway the new Taylor Made with so many releases.

  3. PapaBear

    Nov 29, 2016 at 2:46 am

    Haven’t been this excited since the Cobra 370U was released!

  4. KJ

    Nov 28, 2016 at 9:02 pm

    A lot of the comments, so true. I buy a new driver amount every 3 years. I typically buy a model that’s one year old and half the price of the original in very good shape.

  5. erlybrd

    Nov 28, 2016 at 6:27 pm

    What? Looks just like 915 D4 head!!

  6. Blade Junkie

    Nov 28, 2016 at 3:31 pm

    Another bottle of Snake Oil please Bartender !

  7. B. Parsons

    Nov 28, 2016 at 1:16 pm

    The Korean YouTube video showed these in detail. I’m sure cally will try their best to have it pulled, but it’s still out there. Search for it on naver or another Korean search engine.

  8. Dave R

    Nov 28, 2016 at 12:21 pm

    What I can’t believe it more new drivers, what will they think of next

  9. Jordan

    Nov 28, 2016 at 11:14 am

    Wait, they’re coming out with an adjustable 915 driver? Color me intrigued…

  10. Clay

    Nov 28, 2016 at 10:30 am

    I can’t believe no one has speculated that the bonded hosel design was made for Tiger. Are the “Tiger is buying TM” rumors so strong that no one wants to start a new rumor about Tiger signing with Callaway? Fine, I will start the rumor. The GBB Star is made specifically for Tiger and will not go to market. I have zero evidence but I know some people that know some people that robbed some people and they said it is true.

  11. Michael

    Nov 28, 2016 at 9:33 am

    The Epic Star has my attention. Will this be a non-adjustable model that is in the $399 range? Would they want to compete with possible Fusion sales?

  12. cgasucks

    Nov 28, 2016 at 9:04 am

    Jailbreak technology!??! What is that?? Does it mean if you pay someone to “unlock” it you remove the USGA COR restriction!??!

    • Desmond

      Nov 28, 2016 at 9:23 am

      You need to read the EPIC thread

      • Desmond

        Nov 28, 2016 at 9:24 am

        … or just the descriptions above. Works wonders.

  13. Fozzie Bear

    Nov 28, 2016 at 8:50 am

    Oh, Mizuno Fast Track is back. 🙂

    • DB

      Dec 2, 2016 at 12:49 am

      Man, I just saw a Mizzy Fast Track at GolfMart for like $30.
      If Callaway says this technology is a game changer then I’m going back to get that Mizuno tonight!

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Whats in the Bag

Brandt Snedeker WITB 2024 (Thursday)

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Driver: Titleist TSR2 (9 degrees, D4 SureFit setting)
Shaft: Fujikura Ventus Red 6 X

3-wood: TaylorMade Stealth (15 degrees)
Shaft: Fujikura Ventus Blue 6 X

5-wood: TaylorMade Qi10 (18 degrees)
Shaft: Fujikura Ventus Blue 8 X

Irons: Srixon ZX Mk II (3), Bridgestone J15CB (5-9)
Shafts: AeroTech SteelFiber i110cw, AeroTech SteelFiber i95

Wedges: Titleist Vokey Design SM10 (48-10F, 52-12F, 56-10S), Vokey WedgeWorks Proto (60-K)
Shafts: True Temper Dynamic Gold Tour Issue S400

Putter: Odyssey Rossie White Hot XG, Bridgestone TD-O2

Grips: Lamkin UTx

Ball: Titleist Pro V1x

Check out more in-hand photos of Brandt Snedeker’s clubs here.

 

 

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Spotted: SuperStroke Pistol Lock 1.0 & 2.0 grips

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SuperStroke’s Pistol series is one of its more popular models with an oversized — but still traditional — shape that fits in the hands comfortably.

This week, we spotted a new grip on the practice green at the Cognizant Classic with the “Pistol” name but a little different shape. The traditional pistol shape flares out into the palm on the upper hand and usually has a flat top for your thumb to rest easily. The new grips feature two sizes at the moment, the 1.0 and 2.0, with the latter looking significantly larger.

This new Pistol Lock grip looks to have a similar flat top and flared-out back in the upper hand like the original. The taper to the upper hand looks to start further down the shaft and has a more pronounced shape at the top of the grip. The lower-hand section also might look to have a touch more taper to it, but sometimes these shapes are hard to tell from just photos. Here are the new Pistol Lock grips next to the current Pistol.

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Whats in the Bag

WITB Time Machine: Justin Thomas’ winning WITB, 2018 Cognizant Classic

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In 2018, a playoff at 8 under par determined the winner of the then-Honda Classic. Justin Thomas rolled in a three-footer to defeat Luke List on the first playoff hole, capturing his eighth PGA Tour victory in the process.

See what JT had in the bag at PGA National six years ago below.

Driver: Titleist 917D2 (8.5 degrees)
Shaft: Mitsubishi Diamana BF 60 TX

3-wood: Titleist 917F2 (15 degrees)
Shaft: Mitsubishi Tensei CK Blue 80 TX

5-wood: Titleist 915Fd (18 degrees)
Shaft: Fujikura Motore Speeder VC 9.2 Tour Spec X

Irons: Titleist 718 AP2 (4), Titleist 718 MB (5-9)
Shaft: True Temper Dynamic Gold Tour Issue X100

Wedges: Titleist Vokey SM5 (56-14F), Vokey SM6 (46-08F, 52-12F, 60-12K)
Shaft: True Temper Dynamic Gold Tour Issue (46-60), Nippon N.S. Pro Modus 3 (60)

Putter: Scotty Cameron X5.5
Grip: SuperStroke Pistol GT Tour

Ball: Titleist Pro V1x

More Justin Thomas WITBs

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