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The inside scoop on Rickie Fowler’s oddly unique “black” Diamana driver shaft



Rickie Fowler is likely switching into a black-on-black Mitsubishi Diamana driver shaft this week that few people have ever seen before. New prototype shafts are common on the PGA Tour, so it being “unseen” isn’t a crazy phenomenon, but this one is actually around 9 years old.

If it’s nearly a decade old, then, how has no one seen it before?

Let me explain…

Fowler has been using a Cobra King F9 driver with a Mitsubishi Diamana White Board 73X shaft recently (the above photo is from a WITB we shot at the 2022 American Express). Fowler is no stranger to the shaft model, since he’s played it off-and-on since his college and early professional days. Check out his WITB from the 2014 Humana Challenge, where he was using the same shaft.

There’s been newer versions of the Diamana White Board released since the one that Fowler uses, but he’s using the original iteration. It came out in 2006, and around that time it was played by another golfer you may know: Tiger Woods.

Flash forward to the 2022 Valero Texas Open, and Fowler wanted to switch into the new Cobra King LTDx LS 9-degree driver head equipped with an original Mitsubishi Diamana White Board 73X shaft that he’s used for years. According to Mitsubishi representatives, Fowler recently switched back into the old model because he wanted something that he’s comfortable with and has brought him success in the past.

The only problem was, Mitsubishi didn’t have any stock of that particular shaft with the original graphics. They did, however, have a few old prototypes laying around from back in the day.

Fowler’s particular blacked-out Diamana White Board shaft was from a batch of shafts that Mitsubishi experimented on in 2013. The company had just acquired Aldila, and they were testing out a new laser etching machine using raw Diamana White Board shafts.

That means that the driver shaft Fowler is set to use this week is a black, laser-etched, original Mitsubishi Diamana White Board 73 X. I guess it’s not so “white” of a White Board, is it?

His version plays at a short 44.5 inches, and it’s tipped one inch.

Click here to see what GolfWRX members are saying about the shaft. 

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He played on the Hawaii Pacific University Men's Golf team and earned a Masters degree in Communications. He also played college golf at Rutgers University, where he graduated with a Bachelor of Arts in Journalism.



  1. Jacoby Ellsbury

    Apr 7, 2022 at 3:32 pm

    My backup is a PX Blue 6A4 from like 2009 and I’m never getting rid of it. I’m still not sure my Tensei White 1k or Ventus Black are actually any better on the course.

  2. jgpl001

    Apr 1, 2022 at 3:59 am

    Unfortunately an unusual black driver shaft is the least of Rickie’s worries

  3. Jon

    Mar 30, 2022 at 11:03 am

    Black shafts matter.

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GolfWRX Members Choice: Best driver of 2022



What is the best driver in 2022? At GolfWRX, we take great pride in our online community and the cumulative knowledge and experience of our members. Needless to say, that extends to their views on the best driver of 2022.

The bedrock of is the community of passionate and knowledgable golfers in our forums, and we put endless trust in the opinions of our GolfWRX members — the most knowledgeable community of golfers on the internet. No other group of golfers in the world tests golf clubs as frequently or as extensively, nor is armed with such in-depth information about the latest technology.

You can see the full results for the best driver of 2022, as well as additional comments, in the forums.

Best driver of 2022: The top 5

1. Titleist TSi3

Titleist Tsi3 sole

What Titleist says: “For players who create more consistent contact and require more precise control over CG placement. With a new Adjustable CG Track Design for advanced speed-tuned performance.”

Here’s what GolfWRX members are saying

  • @Audi A-Fore: “TSi3 – a modern ode to the classic 905R. It’s a blend of classic look and feel Titleist with the modern speed and adjustability to fit a wider range of players. Find the right shaft and let it rip, you won’t find a better club even amongst the latest and the greatest.
  • @sandshark: “Titleist TSi3 for me. Titleist topping tour bag counts says a ton, but the TSi3 defies the normal “2 for average joe, 3 for high speed guys” logic and performs for a wider range than any other Titleist driver I can recall. Fast, great adjustability, GREAT sound, has that classic pear 975 look.”
  • @azgolfer64: “Titleist TSi3 hands down is the best driver I have ever hit. Great sound, Great shape, Best distance and low spin.”

You can read what other golfers are saying about the TSi3 driver in the GolfWRX forums, and see our launch piece here.

2. TaylorMade Stealth Plus

TaylorMade Stealth Plus sole

What TaylorMade says: “For the last 20 years, Titanium was all the rage. But we have always known that every material has a limit. So, we started pushing the boundaries and now we’re leaving the old race behind to begin a completely new one. A race that drives beyond the here and now to raise the bar for what’s possible.”

Here’s what GolfWRX members are saying

  • @johnnylongballz72: Stealth Plus is the GOAT.”
  • @IL2AZ: “The Stealth Plus ability to seperate launch and spin coupled with its consistency across the face and high ball speeds is the winner for me. First TM driver that I have seen tangible improvement over the 16 M2.”
  • @OrangeHog: “I switched from my OG SIM driver and have gained 10-15 yards with a remarkable improvement in forgiveness that I didn’t expect. More importantly, though, is the optimized spin rates I’m seeing. Previously with the SIM I would get the occasional low spin dipper. With the Stealth, however, I’ve seen much more consistent spin rates that keep me in play. I love the matte black finish too. I thought the red face would be a deal breaker but it is barely noticeable.”

You can read what other golfers are saying about the Stealth Plus driver in the GolfWRX forums, and see our launch piece here.

3. Ping G425 Max

Ping G425 Max sole

What Ping says: “G425 MAX elevates the moment of inertia to PING’s highest level in history. Forgiveness comes mainly from a 26-gram tungsten movable weight, made possible by weight savings from advancements in the driver’s dragonfly crown technology. The CG-shifting weight can be set in neutral, draw or fade. A T9S+ forged face increases flexing for adding distance.”

Here’s what GolfWRX members are saying

  • @EatDrinkRunLSU: “I was fitted for a PING G425 Max in late January and finally got it in late February. I’ve played 81 holes with it in the last 3 weeks. I’ve hit some of the longest drives I’ve ever hit in 25 years of playing golf over the past 3 weeks.”
  • @poryanop: G425 Max – great balance in terms of distance and forgiveness”

You can read what other golfers are saying about the G425 Max driver in the GolfWRX forums, and see our launch piece here.

4. Callaway Rogue ST Max LS

Callaway Rogue ST Max LS sole

What Callaway says: “Rogue ST Max LS is a high MOI head built for lower spin along with a stronger trajectory. Players can expect to see a more neutral ball flight, more workability, and lower spin characteristics compared to the Rogue ST Max. It’s a great option for many mid-to-low handicap players.”

Here’s what GolfWRX members are saying

  • @Haber: “I voted Rogue Max LS. Had it in the bag a week after release and it’s been solid. Even poor swings tend to not get too far offline.”

You can read what other golfers are saying about the Rogue ST Max LS driver in the GolfWRX forums, and see our launch piece here.

5. Callaway Rogue ST Max

Callaway Rogue ST Max

What Callaway says: “Rogue ST Max is our highest MOI head with a slight draw bias that’s built for all levels of golfers. This is the best combination of distance and forgiveness in a Callaway driver.”

Here’s what GolfWRX members are saying

  • @BallerNate:The Cally Rogue ST Max is the best Driver I’ve ever hit…period. Went through a process of getting it dialed in and figuring out the right settings for my swing, but now that I have it dialed this Driver is an absolute weapon! My last round at one of the toughest courses in my area, I hit 11/14 Fairways, and the 3 that didn’t were still in play with decent approach shots from the rough. Feels so good to have so much confidence in my Driver, and feel like it gives me a chance to beat my buddies whenever I roll up to the course!! ????

You can read what other golfers are saying about the Rogue ST Max driver in the GolfWRX forums, and see our launch piece here.

Join the discussion about the best driver of 2022 in the forums.



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Whats in the Bag

J.T. Poston’s winning WITB: 2022 John Deere Classic



Driver: Titleist TSR3 (9 degrees)
Shaft: Mitsubishi Diamana BF 60 TX

3-wood: Titleist TS2 (15 degrees)
Shaft: Graphite Design Tour AD IZ 7 X

Hybrid: Titleist TS2 (19 degrees, 0.75 degrees upright)
Shaft: Graphite Design Tour AD DI Hybrid 95 X

Irons: Titleist T100s (3), Titleist T100 (5-9)
Shafts: Project X 6.5

Wedges: Titleist Vokey Design SM9 (46-10F, 50-12F, 56-10S, 60-04L)
Shafts: True Temper Dynamic Gold Tour Issue S400

Putter: Scotty Cameron GoLo 5 Black Tour Prototype
Grip: Scotty Cameron Dancing Cameron

Ball: Titleist Pro V1x

Grips: Golf Pride Tour Velvet

More J.T. Poston WITBs

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Whats in the Bag

Preston Stanley WITB 2022 (July)



Driver: TaylorMade Stealth Plus (9 degrees)
Shaft: Fujikura Ventus Blue 7 X

3-wood: TaylorMade M4 (15 degrees)
Shaft: Mitsubishi Tensei CK Orange 80 TX

Irons: Srixon ZX (2), Srixon ZX7 (4-5), Srixon Z-Forged (6-PW)
Shafts: Graphite Design Tour AD DI Hybrid Orange 95 X (2), True Temper Dynamic Gold Tour Issue X100 (4-PW)

Wedges: Cleveland RTX Zipcore (50-10 Mid, 54-10 Mid, 58-10 Mid)
Shafts: True Temper Dynamic Gold Tour Issue S400 (50-54), True Temper Dynamic Gold Tour Issue Spinner Wedge (58)

Putter: L.A.B. Golf Directed Force 2.1

Grips: Golf Pride MCC

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