Posted by: tom.guerry (tom.guerry@kp.org) on Sun Nov 11 08:22:45 2007

Jimmy -

Thanks for going through that.

The reasoning is:

The primary reqirement for the swing is minimizing tining error.

The largest souce or timing error in the power swing is programming/executing the duration of the swing from launch to contact.

The best way to manage/reduce this error is by an optimal blend of shortening the path of the bathead from "launch" (which in this case is when a self feeding/amplifying acceleration is triggered by the center of mass of the bat gettig outside the arc of the handpath) ans by traversing this path as quickly as possible. This is how motor event timing error is best minimized.

In hitting, this "quick acceleration" is then blended optimally with swing plane matching (to enlarge size of "square"/well lined up contact zone) to give the best overall likelihhood of solid and fair contact.

So you want as quick a well lined up swing as possible, nit a swing that stays in the contact zone by deceleration which results in too much degradation of timing and sqareness of contact.

The quickness comes from hips leading (keeping hands/shoulders back/resisting as legs/hips open to start acceleration as far back as ecessary) and hands staying in (connected) so you can ,atch the plane of the swing to the location of the pitch (enlarge contact zone) as late and accirately as possible.