Equipment
Three Callaway GBB Epic drivers appear on USGA Conforming Club List
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
GBB Epic Star
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
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.
Equipment
Tour Edge unveils all-new Exotics mini driver
Tour Edge Golf has today introduced the all-new Exotics mini driver, engineered to deliver a powerful combination of speed, control, and versatility in the long game.
The Exotics Mini combines a titanium face with a stainless-steel body in design to balance ball speed with stability and control, creating a versatile option at the top end of the bag.

At the core of the design is Tour Edge’s proprietary Combo Brazing technology, a high-precision thermal bonding process that seamlessly fuses a titanium cup face to a stainless-steel body into a single, continuous structure. By eliminating energy loss found in traditional multi-piece constructions, Combo Brazing is designed to deliver faster face response, more efficient energy transfer, and a uniquely powerful yet controlled feel.

The multi-material construction also allows mass to be positioned lower and deeper in the head in a bid to increase stability, while the thin titanium face is engineered to maintain ball speed across a wider impact area.

“While the initial goal was to enhance control and versatility in the long game, Combo Brazing ultimately drove measurable gains in ball speed and distance within the mini driver category. In robot testing, we’ve documented higher ball speeds, higher launch, reduced spin, and increased carry and total distance compared to leading models.” – Vice President of R&D Matt Neeley

In addition to distance performance, the Exotics mini emphasizes forgiveness through a heavier stainless-steel body that shifts mass toward the perimeter. This configuration increases MOI relative to traditional all-titanium mini drivers, helping preserve ball speed and directional stability on off-center strikes. Paired with Pyramid Face Technology from the Exotics metalwood line, the design is intended to support consistent speed across the face.

To further enhance MOI, a lightweight carbon fiber crown frees additional mass that is strategically repositioned low and deep in the head in design to improve stability and promote optimal launch with controlled spin.

“We designed the Mini to be about five millimeters shallower than other mini drivers on the market. That change improves playability off the deck. From a clean fairway lie, it can function as a strong 3-wood alternative while still providing control off the tee.” – Tour Edge CEO David Glod
An adjustable hosel system allows for loft and lie tuning to dial in trajectory and shot shape, while a fixed 13-gram rear weight helps stabilize the head through impact to improve dispersion consistency. The Exotics Mini Driver is available in 11.5 and 13.5-degree lofts in right-handed models.

Pricing & Availability
The Exotics Mini Driver is available for pre-order beginning today for $399.99 USD at touredge.com, and will be available for purchase at retail outlets worldwide on May 22, 2026.
Equipment
Srixon ZXi combo or TaylorMade P7CB/770 combo? – GolfWRXers discuss
In our forums, our members have been pitting a Srixon ZXi combo against a TaylorMade P7CB/770 combo. WRXer ‘edutch22’ is on the hunt for a new set of irons and kicks off the thread saying:
“Looking at picking up a new set of irons and think I’ve narrowed it down to Srixon ZXi combo or Taylormade P7CB/770 combo. I am currently a 5 cap and allbeit I feel irons are my weakness. My miss is a little to the toe side. I am decently steep at 4-5 down. Always thought I am high spin but recently on trackman my 7 was spinning at 5800 roughly.
My question or looking for thoughts on which one would benefit me more from a forgiveness standpoint? Or is there another iron is should be looking at entirely? I only get to play about once or twice a week, if I am not playing a 2-3 day event. Thanks in advance.”
And our members have been sharing their thoughts and suggestions in response.
Here are a few posts from the thread, but make sure to check out the entire discussion and have your say at the link below.
- manima1: “You just can’t go wrong with Srixon ZXi7.”
- MattM97: “You have to hit them to know, the V-Sole on the Srixon can be make or break for many.”
- dmeeksDC: “P7CB is more forgiving for me than ZXi7 because my main miss is low middle and the P7CB still flies and spins great on that miss. These are both really nice irons but I like the P7CB more than the Zxi7 and the P770 (or P790) more than the Zxi5. The Srixons are larger so if that gives you confidence that is the way to go. I don’t feel like I get any benefit from the V-sole and the P7CBs live up to their high Maltby forgiveness rating so the TaylorMades have been great for me.”
Entire Thread: “Srixon ZXi combo or TaylorMade P7CB/770 combo? – GolfWRXers discuss”
Equipment
From the GolfWRX Classifieds: 2024 Wilson Staff CB/Blade combo
At GolfWRX, we are a community of like-minded individuals who all experience and express our enjoyment of the game in many ways.
It’s that sense of community that drives day-to-day interactions in the forums on topics that range from best driver to what marker you use to mark your ball. It even allows us to share another thing we all love – buying and selling equipment.
Currently, in our GolfWRX buy/sell/trade (BST) forum, @pianoman0123 has a 2024 Wilson Staff CB/Blade combo up for grabs.

From the listing: “2024 Wilson Staff CB/Blade Combo. 4-8 irons are CB’s and the 9,PW are Blades. 5-PW have Project X 6.0 Shafts and the 4 Iron has a Steelfiber CW110 Stiff Shaft. Standard Length, Lie and Lofts. These are in very good condition the shafts just don’t work for me. Like new Lamkin Grips on the 5-PW and a stock Golf Pride on the 4 Iron. $525 OBO.”
To check out the full listing in our BST forum, head through the link. If you are curious about the rules to participate in the BST Forum, you can learn more here: GolfWRX BST Rules
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westphi
Dec 4, 2016 at 12:56 pm
When is this going to be released in stores?
Red Regal
Nov 29, 2016 at 6:42 am
Callaway the new Taylor Made with so many releases.
PapaBear
Nov 29, 2016 at 2:46 am
Haven’t been this excited since the Cobra 370U was released!
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.
erlybrd
Nov 28, 2016 at 6:27 pm
What? Looks just like 915 D4 head!!
Blade Junkie
Nov 28, 2016 at 3:31 pm
Another bottle of Snake Oil please Bartender !
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.
Dave R
Nov 28, 2016 at 12:21 pm
What I can’t believe it more new drivers, what will they think of next
Jordan
Nov 28, 2016 at 11:14 am
Wait, they’re coming out with an adjustable 915 driver? Color me intrigued…
Guy
Nov 28, 2016 at 11:49 am
Thats what I was thinking when I saw it.
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.
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?
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.
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!