David Butler · Fitter of PGA & LPGA Players, Juniors, Seniors & High Handicappers
The Golf Ball Fitter LLC

Doctor Grip Golf

Site Version v63

50 years of club repair, club design, club building, and club fitting.
Deep research in aerospace aerodynamics, metallurgy, mechanics, physics, and computer science — what every component does, and how they all work together. The result: eight fitting studios.

Articles & Recognition 3 features · press & awards
The Author David Butler · the founder story

The 8 Fitting Studios

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FREE Studio 01

Which Ball Should I Play?

In fifty years of building golf clubs, the first question I was ever asked — and the one I'm still asked most — is simple: which ball should I play? For most of those years there was no real answer, only brand loyalty and advertising. Now there is one. This studio answers it with aerodynamics, physics, and the measured physical properties of the golf balls themselves, working from the five factors that decide every shot: launch velocity — how hard you hit it — plus launch angle, reverse ball spin, altitude, and temperature. Enjoy this free contribution to the golfing public.

thegolfballfitter.com
$29.95 Studio 02

My First Set of Golf Clubs

All we need to know is how far you think you hit the golf ball. This studio is a premium golf fitting experience that helps golfers match the right clubs and the right golf ball to the way they actually play. It turns player inputs into a recommended set, ball guidance, and a clear performance review focused on distance, trajectory, gapping, and scoring control.

thegolfclubfitter.com
$49.95 Studio 03

Wedges — Your Scoring Clubs

Proper club gapping starts with knowing how far each wedge really flies. This studio uses a 1.25 smash factor — ball speed divided by club speed — to estimate pitching wedge ball speed from your swing speed, then helps you dial in PW, GW, SW, and LW lofts while matching the right golf ball to launch, spin, apex height, descent angle, and carry distance.

wedgefittingstudio.com
$69.95 Studio 04

My Best Driver

Dial in a handful of sliders — starting with your swing speed — and our engine scores all 198 driver heads, shafts, and golf balls in our database, then hands you a personalized spec sheet with your three best matches.

thedriverfittingstudio.com
$129.95 Studio 05

My Personal Set of Custom Clubs

In my Half Moon Bay shop I would spend hours with a player deriving it all — the head, the shaft, the flex, the length, the ball. That became my build sheet, and from it I built the set. I can't build yours from here, so I'm handing you the build sheet itself: every specification, precise enough for any club builder or golf shop to execute exactly as written. And done this way it's more thorough than my shop ever was — the database holds far more heads, shafts, and balls than I could ever keep on the racks in Half Moon Bay, so your specifications are drawn from the whole field instead of my inventory. A carry card comes with it, listing your true yardage for every club in the set.

mastergolffitter.com
$149.95 Studio 06

For Master Club Fitters

Built for club builders — and for anyone who wants to build their own set of clubs. Answer a short, guided set of questions about your swing, your build, and your goals, and the engine engineers a complete set: every head, shaft, and grip, plus the ball, dialed to your numbers. The output is a complete bill of materials — every component specified and ready to order, whether you assemble it yourself or hand it to any builder.

aigolfclubbuilder.com
Special$19.99 Studio 07

Long Drive Contestants

One driver, engineered to spec — head, shaft, loft, length, and ball optimized for maximum carry. For long drive contestants and anyone chasing distance. Available in 12 languages, imperial and metric.

 Watch the-ultimate-driver.com
FREE Studio 08

The Scientific Library

13 articles · background reading

scientificgolflibrary.com
Independent by design. Doctor Grip Golf sells no clubs, carries no sponsorships, and earns nothing from any manufacturer. No brand is favored and none is protected. Every recommendation comes from pure research and 50 years of fitting data — if it's on your spec sheet, it's because the numbers put it there.

The David Butler Golf Network

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