[Yoda]

My remaining feeling is that I do not want to introduce the book to fellow golfers having to "defend Homer" by pointing out 1-H and saying that all may not be scientifically correct. Guess that goes for me as well as many other engineers and such. I also understand if non-engineers could not care less.

On the other hand: Most people know there are some pretty serious errors in Hogans Five Lessons, but they are still in there & will most likely never change. Nor is it likely to see a foreword saying that this and that is not accurate.

First, the 'serious errors' of Ben Hogan's Five Lessons have no counterpart in The Golfing Machine.

Second, I do not agree that Homer Kelley's book is scientifically incorrect. And that includes TGM's underpinnings of Centrifugal Force, which any scientist will tell you is merely a fictional or simulated force.

Third, Homer was all about helping people play better Golf. He was not at all interested in a technical dissertation on Newton's Laws of Motion. In fact, he didn't even want to write Chapter 2 (Statement of Principle) but felt it necessary to substantiate his research.

Fourth, as the author, it was Homer's privilege to state his 'rules of engagement,' i.e., to limit the playing field of his work. And it was his stated purpose in the first sentence of The Glossary's introduction to define terms within the context of their mechanical and golfing APPLICATION. Mechanically speaking, the application of the acceleration concept is to alter a moving object's momentum (P=mv). And golfingly speaking, its application is to increase during the Downstroke the Angular Momentum of the Clubhead through the Pressure Points in your Hands, thereby increasing the Clubhead Force (F=ma). And also, to use those same Pressure Points to sustain (to the extent possible) the Clubhead's Momentum and Force through the unavoidable Deceleration of the Impact Collision.