Equipment
Spotted: Callaway GBB Epic Sub Zero “PM440” hits USGA conforming list
Callaway’s GBB Epic Sub Zero driver — the more forgiving, yet deeper-faced option in the GBB Epic driver series — has made waves on professional golf Tours, and it also garnered the most votes in GolfWRX’s Members Choice: The Best Driver of 2017. The retail models measure 460cc, but there’s another 440cc version floating around on Tour in the bag of Alex Noren.
Now, there’s yet another GBB Epic Sub Zero model in existence; a “GBB Epic Sub Zero PM440” is listed on the USGA Conforming Clubs list.

What could a left-handed Callaway driver named “PM” possibly mean? We’ll go out on a limb and guess that Callaway has made a GBB Epic Sub Zero 440 driver especially for Phil Mickelson, but we will update this story when Callaway representatives provide further insight on the “PM440.”
Update: “It’s a left-handed 440cc version of Phil’s driver,” said a Callaway representative. “It’s a one-off Tour prototype that they built of his driver for him, instead of the standard 460cc head.”
Discussion: See what GolfWRX members are saying about the GBB Epic Sub Zero drivers in our forums.
Equipment
Slab city on the Korn Ferry Tour — Lead Tape Report
This week, we have our Tour Photographer, Greg Moore, on the ground at the OccuNet Classic at Tascosa Golf Club in Amarillo, Texas, for the 14th event of the 2026 Korn Ferry Tour season. With that, we see some great things in the Lead Tape Report as we roll into Amarillo.
Joel Thelen
Monday Qualifier, Joel Thelen is in the field this week. He has played on the Korn Ferry Tour for a full season in 2023, and he is back in action this week. A couple of clubs caught my eye this week in his bag.
First off: His trusted Titleist 816 H2 hybrid. This club came out in October of 2015, and it still remains strong in the bag. Also, take a look at this Odyssey White Hot OG 7, putting a capital S in the 7S model. This custom neck has some impressive lean for an arm-lock-style putter. The bottom of the putter is covered in tape for optimal weighting.





Mitchell Meissner
Taking a look at Mitchell Meissner’s bag this week, we have some great lead tape coverage. Top to bottom working from fairway metals, irons, and wedges. We can see on the short irons and wedges that there is tape at the base of the grip, adding a little counterbalance. Along with that, some tape on the short irons and wedges as well. Moving to his putter, he rolls the Odyssey 7 Bird putter. Meissner putts left-handed and strikes the ball right-handed.






Whats in the Bag
Bud Cauley WITB 2026 (June)
Bud Cauley had >14 clubs in his bag when photographed prior to the Memorial Tournament.
Driver: Titleist GTS2 (8 degrees)
Shaft: Fujikura Ventus Black 6 X

3-wood: Titleist GTS3 (15 degrees, B1 SureFit setting)
Shaft: Mitsubishi Chemical Tensei 1K Pro Red 70 TX

7-wood: Titleist GTS3 (21 degrees, D1 SureFit setting)
Shaft: Mitsubishi Chemical Tensei 1K Pro Red 80 TX

Irons: Titleist U505 (3), Titleist 620 MB (4-9)
Shafts: Fujikura Ventus Black HB 8 X, True Temper Dynamic Gold Tour Issue

Wedges: Titleist Vokey Design SM11 (48-10F, 52-12F, 56-14F), WedgeWorks (60-K*)
Shafts: True Temper Dynamic Gold Tour Issue S400

Putters: Scotty Cameron Tour Prototype, Scotty Cameron GOLO 6.3 Prototype


Grips: Golf Pride Tour Velvet Align
Ball: Titleist Pro V1
Equipment
Name every set of irons you’ve owned – GolfWRXers discuss
In our forums, one user has offered up a prompt for the true sickos, inviting fellow forum members to share every set of irons they’ve ever owned. As to be expected, this is a lengthy forum topic.
@Lamosteve began:
Can you name every set of irons you’ve owned? Here’s mine
Spalding Dots
Spalding Eclipse
Ram Lazer FX
Lynx Parallax
Mizuno EZ Comp
Ben Hogans
Cleveland CG Red
Taylor Made R9s
PING i20
PING iE1
Taylor Made M6
Our members in the forum have been offering up their own collections. 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.
- macedan: “Started with a hand-me-down Golden Bear set from my brother when I was in high school, never really played more than once a year or got into the game until about summer of 2017. First purchased a set of Cleveland CG4’s (I actually really miss this set sometimes, soft & not terribly large for a GI iron), moved into Nike Vapor Fly’s by the end of the year. Those lasted until spring of 18 when I decided I wanted new, so I traded them in for TM Rbladez. Honestly, although I liked the Rbladez, poor decision on my part, I think this was really about the only time so far that after a week or two I was kicking myself for not staying with what I had. Rbladez stayed with me until late last summer when I switched to P790’s and (knock on wood) I am hoping this will be my longest lasting set.”
- JimmyC59: “MacGregor Jack Nicklaus Triple Crown. Palmer The Standard. Still play these.”
- jgrzask: “Tommy Armour 845u
Mizuno MP-32
Mizuno MP-33 (2 sets)
Bridgestone J33cb – still own
Srixon i-302 (2 sets) – still own
Tourstage X-Blades – still own
Mizuno Hot Metal – still own
Nike Forged Blades – still own
Titleist 714 AP1 – still own
Cobra Forged SS – still own”
-
Equipment6 days agoMemorial Tournament Tour Report: Rory McIlroy, Cameron Young switch up drivers, and more
-
News2 weeks agoRussell Henley’s winning WITB: 2026 Charles Schwab Challenge
-
Equipment3 days agoBest irons 2026: Best irons overall, most forgiving irons, and more
-
Whats in the Bag4 days agoJ.T. Poston’s winning WITB: 2026 Memorial Tournament
-
Equipment1 week agoDetails on Jason Day’s latest prototype Avoda iron setup
-
Equipment3 weeks agoCJ Cup Byron Nelson Tour Report: Koepka and Kim’s newest putters finally get hot
-
News2 weeks agoCharles Schwab Challenge Tour Report: MacIntyre, Åberg and Spaun all switch putters, TaylorMade launches new Spider
-
Equipment2 weeks agoDetails on J.J. Spaun’s surprise putter switch



Barry
Jun 10, 2017 at 5:28 pm
I wish they would come to market with that same black/ silver or black/grey color scheme versus the green/ black scheme.
Dave R
Jun 6, 2017 at 4:22 pm
Really . A new driver!
@@!!!
Jun 3, 2017 at 10:35 pm
Personally I lprefer a smaller head like a SLDR/M1 430/440, 917 D3.
But I really wish a there was a pic from the address point of view, because that’s really a huge factor of importance I think.
@@!!!
Jun 3, 2017 at 10:16 pm
Per
Sam
Jun 2, 2017 at 5:16 pm
Maybe he’ll be able to hit 10 fairways at the US Open with this thing
Scraping the barrel
Jun 2, 2017 at 4:21 pm
Epic fail more like.
rebfan73
Jun 3, 2017 at 8:52 am
Agreed…..
Mike
Jun 7, 2017 at 8:07 am
I like the EPIC Sub-Zero much better than the Taylormade M1 which I thought was a pretty good driver. So for me and many others it is more epic than fail….