[ThinkingPlus]

All,

This is just a reminder for everyone. Jorgensen's book is based on a model of the golf swing that he created which specifically fit a PGA pro in the 70s when the research was done. It is not a model that would fit every swing or even the most efficient, powerful, or accurate swing (it might or might not). He also does not divulge the pro he used in his work.

That being said, the physics is sound within the assumptions provided. Since PGA touring pros tend to have pretty good swings (slight humor here) and do most things correctly, general conclusions can be drawn somewhat from Jorgenson's work, but there still might be some ambiguous or misleading conclusions as well. I have never read the other paper referenced in the link and so cannot provide any insight into it.