Welcome to this Masters edition of the Tour Truck Report. Normally, there aren’t many major equipment changes the week of a major golf tournament. However, Bryson James Aldrich DeChambeau—and we mean this in the best possible way—is anything but normal.

Thus, it’s not totally surprising to see DeChambeau testing a new Cobra RadSpeed Prototype driver at Augusta National.

Here’s what Cobra VP of R&D Tom Olsavsky had to say about the new weapon.

“The big thing here is speed, and Bryson has a lot of it. To help build a driver specifically tuned for his dynamics, we removed the adjustable weights to save mass from the housings and have focused on internal changes to help him reduce miss-hit variance.”

”The other thing we did was increase the face thickness of his drivers to prolong durability. Bryson hits a lot of golf balls, and with the amount that he hits both in standard practice and his speed training sessions, we wanted to help eliminate any durability concerns. We also suggest that he rotates the heads during sessions—and the adjustability in the hosel makes that easier to do.”

”Now speaking of the face, we specifically removed the Infinity Face on this new head, because it allows us to change the face radii easier and reduce the toe radius to help with his toe misses.”

More on the smattering of other pre-Masters equipment switches below.

Titleist

Adam Scott has been testing 620 MB irons for the past few weeks, according to our source. There’s a good chance they go in play Thursday. The Australian is also debating between a Vokey SM8 60-06K and 60-A.

Callaway

Phil Mickelson is reportedly considering putting with a glove on this week, for what that’s worth.

Jon Rahm continues to play Epic Speed Sub Zero Prototype 3 and 5-woods, as well as a prototype Stroke Lab steel putter shaft.

Photo via Callaway’s Johnny Wunder.

TaylorMade

After a week in the SIM2 Max, Dustin Johnson has returned to his 10.5-degree SIM Max. Fujikura Speeder 661 X, of course.

Matthew Wolf has a new Project X HZRDUS Smoke Black RDX 60 TX shaft in his 9-degree SIM2.

Cobra

Sources confirmed Bryson DeChambeau will put the Cobra RadSpeed Prototype in play.

Ping

Lee Westwood has swapped his hybrid for a Ping G425 7-wood.

Cameron Champ has switched from a Ventus Blue back to the Project X HZRDUS Smoke Green 70 6.5 TX he played last year.

Matthew Fitzpatrick tested a G410 9-wood. Unclear whether he’s putting it in play.

In a case of tailoring equipment to the course, Joaquin Niemann added loft to his G425 3-wood to hit a high draw at the downhill 495-yard 10th at Augusta.

Others, free agents

In other news, we’re hearing Fred Couples may bench his beloved 2008 vintage Callaway FT-i Squareway 3-wood for a TaylorMade SIM2 Max. We’ll have to see what Boom Boom booms his 3-wood shots with on Thursday. He may also have his old Bridgestone irons in play.

Matt Kuchar demoed a LAGP putter shaft with a SuperStroke grip in a new Bettinardi BB8 Tri-Plane putter. He has also reportedly decreased the loft from seven degrees to four on the wand as he is using a new armlock putting method.

Collin Morikawa is testing Vokey SM8 60-04L with reduced ribbon for Augusta’s firm, tight lies.

The legend Jose Maria Olazabal has a new Vokey SM8 58-08M in the bag.