Why Most Swing “Fundamentals” Aren’t Actually Fundamental w/ Jon Sinclair
7/6/20261 hr 32 min
In this episode, Jon and Adam are joined by instructor and 3D motion capture expert Jon Sinclair for a deep dive into what the best players actually do — and what everyday golfers should not blindly copy. Sinclair explains why many so-called fundamentals, like grip, stance, and posture, are not universal, and how great players often succeed by building around their own “superpowers.” The conversation explores how golfers create consistency through better thought processes, why trying to fix every bad shot can make things worse, and how swing changes need to evolve into playable skills on the course. They also get into wedge technique, short-game launch conditions, shaft consistency, and why better data should simplify your golf game rather than make it more confusing.
Visit Jon's website to learn more about his services here: https://www.sinclairgolf.com/
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Clips
Transcript preview
First 90 secondsJon Sherman· Host0:00
Welcome back to another episode of The Sweet Spot. This is John Sherman from the Four Foundations of Golf, and as always, I'm joined by Adam from Adam Young Golf. So today we have a guest on the show that I, I'm sure we've mentioned his name a few times, and Adam are al- and me are always like, "Oh, we gotta get this guy on." He's done a ton of research and 3D motion capture and a ton of other things. So we're happy to have John Sinclair on the show. John, welcome to The Sweet Spot.
John Sinclair· Guest0:22
Yeah, thank you for having me. It's a great honor to finally get to come on.
Jon Sherman· Host0:26
Oh, I, I don't know about that, but we're glad to have you.
Adam Young· Host0:29
We do mention you occasionally, John.
Jon Sherman· Host0:32
Yeah, we do. You, you've come up quite a few times, so it's about time, like I said.
Adam Young· Host0:35
[laughs] There's a few guys that I trust, you're one of them, Chris Como, Sasha Mackenzie, Joe Mayo.
John Sinclair· Guest0:43
Mm-hmm.
Adam Young· Host0:43
I think going through that list mentally this morning, it's like, oh yeah, they're all very data-driven and humble enough to say when they've been wrong in the past with certain things or, you know, humble enough to change their ideas on things. So, yeah, that's why I appreciate your information. I know we've had talks in the past and you've helped me clarify certain things in my head as well. So yeah, it's great to have you on. I can pick your brain a little further.
Jon Sherman· Host1:09
He's ready for it. Fire away, Adam.
John Sinclair· Guest1:11
Yeah, pick away.
Jon Sherman· Host1:12
[laughs] I'm gonna let you tee off first here, man. Go for it.
Adam Young· Host1:16
Tell us about yourself, John. What makes you unique as an instructor?
John Sinclair· Guest1:22
Well, I don't know how unique I am other than I try to n- know as much about everything as I can.

