[BerntR]

Thank you, BerntR. You know a whole lot more physics than I do, and I appreciate your contributions.

Thank you Yoda,

In my opinion TGM is the only truly systematic framework for understanding the golf stroke. But the book itself is at least as hard a read as an advanced textbook in digital signal processing. And while your countless explanations have opened the door and then some, I believe there is more between the lines of the yellow book than we currently are aware of. And with all due respect to the legacy of Homer Kelley - there is (probably) always room for improvement. And kudos to Jeff for asking questions that triggers this kind of discussions (even though he is a hardheaded bloke).