The fleet of tour trucks arrived southwest of Orlando this week for the Arnold Palmer Invitational at Bay Hill Club and Lodge.

It’s an appropriate place to be digging into the nuances of pro golfers’ gear, given the club building, tinkering, and general gear junkie-hood of the tournament’s namesake, Arnold Palmer, whose 10,000 club-filled workshop is gear nut’s cave of wonders.

Let’s dig into the tweaks and wholesale switches we’re hearing about at the King’s place.

Titleist

Byeong Hun An plugged a Mitsubishi MMT Utility 125 TX shaft in his Titleist U500 2-iron.

Bernd Wiesberger is testing a Graphite Design Tour AD DI9 TX shaft (tipped 1.5 inches) in his TSi2 3-wood as he searches for more of a consistent cut ball flight. His current gamer features a Graphite Design Tour AD IZ 8 TX shaft with the same tipping.

Denny McCarthy, Robert Streb, and Byeong Hun An are all testing new Project X EvenFlow RipTide shafts (which began tour seeding in late January).

And on a related note, while we haven’t heard specifics of anyone putting one in play, we spotted prototype Scotty Cameron 11.5 putters that feature an expanded range of sight lines (more photos here).

Vokey

The report from @vokeywedgerep: “Tons of fresh wedges this week anticipating firm and fast greens at Bay Hill as well as prep for The Players. Many players checked loft and lies, also.”

Bernd Wiesberger has a fresh set of wedges and Byeong Hun An added a 60T SM8.

Doug Ghim, who is usually in an SM8 60-08AD+, is going with a different grind/bounce profile this week: 60-06K.

Patton Kizzire switched to a 52M Proto.

JT Poston is switching to SM8 56-10S reducing some bounce on his wedge (from 56-14).

Jazz Janewattananond may have some of the most unique wedge stampings on tour. Gotta love the skateboard tricks (and the skateboarder stamped by AD) on the 60T!

 

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Callaway

Both Kevin Kisner and Matt Every have switched into Mitsubishi MMT iron shafts (125 TX) as the composite iron shaft surge continues (more on the MMT shafts here).

Francesco Molinari is testing a Callaway Epic Speed (Triple Diamond) driver.

Tyler McCumber has a fresh set of MMB irons.

Sam Burns is in an Epic Speed LS driver with a Fujikura Ventus Black 7 X shaft (and going down three swingweight points, D6 to D3)

Marc Leishman moved into an Epic Speed 4-wood with a Fujikura Ventus Black 8 X shaft.

Matt Wallace is putting an Epic Speed driver (9 degrees) in the bag with a Fujikura Ventus Blue 6 X shaft.

Maverick McNealy is gaming “Proto Top Gun irons” (that we are eager to get a look at!) with True Temper Dynamic Gold Tour Issue X100 shafts.

Ping

Tyrrell Hatton is testing a Fujikura Ventus Red 6 X (tipped 1.5 inch) shaft in his G425 driver. Compared to his gamer, Hatton saw an increase in ball speed, more consistent spin, and less curve to the right.

Cobra

Jason Dufner testing a prototype 3D-printed Cobra putter “Agera.” It seems to feature the same SIK Descending Loft Technology (DLT) as the King Supersport-35.

Rickie Fowler returned to his Rev33 irons—albeit with some fresh grinding to the soles of the sticks. Have we arrived at Rev34?

TaylorMade

Pretty quiet on the TM front—save for some superb limited AP headcovers.

 

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Robert MacIntyre is taking the full SIM2 plunge: SIM2 Max driver, SIM2 Titanium 3-wood, SIM2 Rescue (19.5 degrees).

Tommy Fleetwood is gaming the 2021 TP5x ball.

PXG

Jim Herman is testing a PXG Gen4 driver with a Graphite Design Tour AD DI 6X (tipped 1 inch).

Zach Johnson was testing a Gen4 driver as well.

Scott Garrison/KBS

Jordan Spieth got a new SuperStroke Traxion Flatso 1.0 grip on his Scotty Cameron 009 putter.

 

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Bryson DeChambeau’s SIK Pro C got a loft and lie check.

Free agents

Justin Rose is looking at new blade-style prototype Axis1 Rose putter models—as well as both Mizuno MP-5 and MP-18 irons—in addition to Ping G425 5 and 7-woods (both LST and MAX) with Mitsubishi Tensei AV Raw Orange shafts.

A final note: If you’re wondering what 1990 champion Robert Gamez will be playing, here’s a look—Wilson D7 irons, Wilson Staff blades, multiple Cleveland RTX wedge varieties, and a T.P. Mills flatstick. Nice!

Check out all our photos from Bay Hill, here.