[Mike O]

"So, the Clubhead is not picking up speed during the Overtaking (Release) Interval, either when Hitting or Swinging (6-C-2-B, 7-19). And carefully study 2-N and 2-P."

That's just Homer Kelley in his own world - not realizing how or when to be clear in his writings. Or put another way - if you read the entire 1st paragraph in 6-F-0 - he's assuming that you know that he is talking about "Overtaking Rate" - Hand speed - RPM's not clubhead speed. When he uses the term "Speed" in that sentence - he's referring to RPM speed - he'd be the first to acknowledge that the clubhead is picking up tremendous surface speed during the release.

He actually measured the different shaft locations during release for two different swings in the book "Search for the Perfect Swing" - one he determined was a hitter and the other a swinger. From that and other assumptions - he determined that the hitter's RPM slowed down during release (that is the distance between subsequent shaft locations during release became slightly smaller with the hitter).

Expecially important here - if you use his cross reference to 2-P, you need to have the 7th edition as he much more clearly differentiates the #2 and #3 accumulators and clubhead speed versus RPM speed in the 7th edition re-write in 2-P. The cross reference to 2-P in the 6th edition from 6-F-0 just creates additional confusion.