I've always wondered about the time and space measurements concerning the interval between impact and separation. Does Kelley cite numbers that are significantly different than current instruments measure? I took a lesson from a fellow AI and was informed that a square face at impact in an otherwise ideal 300 yard driver swing would be significantly closed enough by separation to send the ball way more left of target than my non-scientific mind can believe. I was also informed by the same AI on the same day that for every inch that the ball was played behind low point on that same 300 yard driver swing, the ball would end up 20 yards or more to the right of target. A film of my swing showed me to have the ball set at address two inches behind an ideal low point opposite the outside line of my left shoulder and therefore misaligned right of target by 40 yards. I was then told that I would require of my swing quite a menu of compensations to subconsciously choose from to make the ball go straight whether it be one choice a' la carte, a combo platter, or a smattering of each.
I don't have a book on hand and I can't remember if Kelley even offered up concrete numbers concerning the above. This AI pretty much said Iron Byron and the Ping machine supported his claims.
Did Kelley offer any definite take or measurements concerning any of this, and if he did, was he right?, wrong?, outdated?, or were even precise measurements of this sort possible when he was alive? Have new club/ball equipment technologies and materials significantly changed any measurements concerning basic club and ball behavior since Kelley's time? Does my fancy new driver's clubhead speed during a centered strike still get slowed down by 20% and do my fancy new balls still have that .7 restitution thing?
I'm an AI with an English degree and only answered Chapter 2 questions by quoting the book. I was fortunate to have Tomosello as my mentor because I don't think he knew what to do with Chapter 2 either. I wouldn't know an error if I saw one in any edition of TGM. All I know is that whatever Kelley told Tomosello to tell me turned my golf world upside down and shook out loads of crap that got replaced by a few remarkably simple concepts that I still consider errorless in content yet happily flawed in real world application. The greatest thrill for me to this day is that because of Homer Kelley I don't anticipate bad shots and the bad shots I still often hit into woods. water, or wherever are still usually struck fairly well.