[12 piece bucket]

Applied force is applied force. As long as the lag pressure is felt at PP3 throughout the down (out and forward) stroke, then the Hitter is still applying force. However, if one plotted lag pressure vs. time during the down stroke, then one might see variation as different components dominate as the force appliers.

Actually, some of the more advanced swing analysis places measure and plot clubhead acceleration during the golf stroke. It is an eye opening and humble experience. The Titleist Performance Center folks probably do it. Don't forget, acceleration makes the world go round.

Witcha . . . but . . . is the force that the Hitter applies the same as Angular Momentum? Or is he overriding it as a result of trying to thrust in a straight line?

Thanks for bearing with me . . . there were some cousins who "got together" in my lineage.