From the First Edition:

The effective swing radius by the time of the release also makes a different. That should correlate prety well with hand speed.

Increased swing radius increases the effective moment of inertia - which is one of the "effective mass" parts. The other being active power during ball contact. Both of those will be felt as a varying degree of shock and impact resistance in the hands.

Lag Pressure and Lag Interval (Pivot Lag).

YES . . . . . .

Im thinking it is primarily the "spin of the flywheel", the initial acceleration upon which the Arms build, magnify. Assuming a Swingers Drag Loading 6-M-1 Down Stroke Sequence. For Three Accumulator Hitters it is still there but less key.

Hey Buck

I think our posts crossed mid air. Mine wasnt a rebuttal to yours by any means. The difference in them is interesting. Is 6-M-1 to your mind about rotation and extension then? How do you extend all those levers and not raise up the left shoulder? I can see 6-M-1 in a slide or a turn way but never thought about it as an extend thing before . Cool.

Oh sure . . . I knew you weren't rockin' no rebuttalz . . . .

Go stick your head in a door frame and pivot . . . do it slow and pay attention to what happens. Notice how your knees joints, hip joints and spine has to change from out of line to in line to pivot centered. Now do it slow and try to keep the joints FLEXED . . . you gotta do some contorted stuff to make it work. "Tilting the teacup" involves moving several joint segments to stay centered. Pay particular attention to what your hip joints and spine does. Nobody does a true double anchor on the backstroke. They right knee is unbending to an extent. That allows the hip to continue turning . . . vicey versy on the downstroke. But if you look at the Hogan sequence . . . notice the left knee . . . IT'S WHEN IT HAPPENS . . . you want it to straighten for sure . . . but if it straightens early (gets in line) then the hips are going to start turning at that point. But say you don't ever straighten it . . . hips will be limited in their range of motion to turn also the hips will not extend (get in line) . . . could get saggy kneed and goat hump to keep the club coming from in . . . or chase with your head ala the old dude in those pivots. Note how his hips have not gotten in line.

Note how this dude's hips have not extended fully . . . his spine is vertical (not bent to the side) . . . his head would be off the door frame . . . up away and forward. Compare the head alignment to Hogan and Hogan to Tiger . . . See what the pivot has done to the head and eye line . . . Hogan would have his eyeline pretty much parallel to the plane angle . . . old cat is pretty much looking as if he were standing up . . . Tiger parallel to plane line. Hogan is the model . . .



Compare to Hogan . . . his head would still be on the frame spine is bent to the side and hips joints extended and continued to turn. Compare to Tiger . . . extended hips and knees but head went backwards. Note how hogan has "released" his head too. Maybe some of that stems from Tiger having that goofy head up set up versus having his face down . . .but if we had the full sequence to compare you'd likely see Tigers left knee straighten early and then head start moving backwards. So you can imagine the implications on the clubface with that much speed . . . fleeting alignments . . . versus hogan who can continue to move the face at a uniform rate because he has kept up his rotation. Note how much farther forward Hogan's right shoulder is than Tigers . . .

Excellent Post Bucket.... Even though Tigers arm swing is more independent than Hogans, I think that your analysis is correct.

I was reading a little in 5 lessons the other day and the 2nd paragraph on page 107:



And Hogans car accident was much more severe than Tigers SUV accident. :)