The things I was interested in were the way the power package is transported by his pivot initially...with the hands, shoulders and clubhead moving approximately equal amounts... up to the bit where it goes frame by frame...
I am seeing accumulator 4 release (and some loss of his extra left wrist cock) as the reason that the shaft moves awy from the right shoulder... place your arrow/cursor finger on the right shoulder at this point and see how little it moves compared with the hands and clubhead....
So everything together at the beginning then much more hand and clubhead movemennt whilst the right shoulder moves little (not stationary...just less than the initial movement...so I think it slows to cause release of acc4)
But to maintain lag pp3 pressure/straight plane line tracing etc it starts moving more....just before impact and after that.
I see acc. 4 as a blast off of the left arm from above the nipple line to below the nipple line...so it happens when the shaft starts to move away from the right shoulder and the relative movement of the right shoulder decreases...especially compared with the left shoulder...
Sounds too confusing...too rushed..off to work...sorry ...maybe explain better later.
The 10th frame doesn't show the typical Hogan post impact "yank the Club to the inside". Observe that the right arm looks almost parallel to the base line of the plane.
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