Timing
 

I've glossed over this 100 times. Does this mean that "Mass" increases during the Release Interval as long as Lag Pressure is constant?

Nice one D. I know the Hands slow as the lever extends (#2 angle) but I'd have thought that the clubhead speed increases all the same......

I

conservation of angular momentum

hb

Ya but.........if lever extension is associated with a slowing of clubhead speed then Lag Pressure leaks away too.

Bear your a man of science, if this is true, that #2 angle extension leads to a loss of clubhead speed then why did Homer label #2 as Velocity power?

Thanks

Hmm? I think that Homer is saying that although a dramatic speed increase occurs at the moment of Release, it then remains constant. And, although the #3 PP remains constant, which is Acceleration, the pressure causes an increase in Mass.

????????????????

"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.

COAM isn't relevant here. COAM sounds cool since it is about angles and momentum, but it doesn't really explain anything related to the golf stroke. If COAM were relevant to the golf stroke, it would mean that the clubhead slowed down as it was released. That's what happens when a moon sails away from it's planet and in other coam systems....

Conservation of energy - and to be more specific - velocity energy - is what you need to look at here.

The trowout and the centrifugal power - as dull as it may seem - doesn't produce any speed in isolation. The release causes a redistribution of velocity energy in the club. This makes the club head move a little faster and the handle move a little slower. The heavier the shaft is the more there will be to redistribute. But I believe this is a minor.

If the hands produced zero resistance against slowdown during release the club as a whole would not pick up any speed. The important thing is the heavy feel you (hopefully) feel when you make a really good release. This is the feel of you thrusting the club really hard. Pushing and pulling with linear forces per TGM, tangential forces per Sir Isac Newton. In 5th gear. It's the effort during the release interval that produces the speed -whether it's active as in thrusting with the right hand or more "passive" as in just keep the pivot going and thrusting with PP¤4. All the release does is give your pivot and hands super leverage. Not that there's anything wrong with that.

yes
 

Yes. When the force that moves anything is removed it will start to slow down. It is easy for #2 to add but when it stops adding no more acceleration from #2.

My opinion

HB

Where does release start?

there is no one, correct answer.
7-24, 10-24(all), 8-9 (except for this thread)

The Bear

Thanks Mike thats very insightful.