Why Crossline For Hitting?

[Yoda]

Originally Posted by Yoda

Originally Posted by comdpa I don't have the answer, but I am curious to know why hitters have to adopt a cross line procedure and hence use a 10-5-E. Anyone with answers? Hitters and Swingers alike can use the true Geometric Plane Line (the Baseline of the Inclined Plane). Being the 'Basic Basic', it can always substitute for either of its Visual Equivalents, i.e., the Swinger's Arc of Approach and the Hitter's Angle of Approach. Just be aware that the Right Arm's Drive through Impact is a linear motion that will tend to take the Club above Plane during the Follow-Through. If you need a Delivery Line to help guide this motion, then it's time to adopt the Closed Plane Line of 10-5-E. Remember, though, that you don't Trace -- point at -- this Line with the Clubhead. Instead, you cover it.

Per 1-L-6, even when using a 10-5-E, the clubhead covers the closed plane line, but still points at the base of the inclined plane right, since they are all the same.

I would think that here, the 10-5-E plane line is the hitter's equivalent of the swinger's arc of approach. Kee-rect?

Sorry, Compda, but the answer is 'no' on both counts.

1. The original Inclined Plane (and its Baseline) ceases to exist. Its only purpose for the Hitter using the Angle of Approach procedure is to identify the Impact Point and Low Point and hence, the Angle of Approach itself. Once this 'out to right field' Delivery Line has been determined, the Closed Plane Line of 10-5-E can be used as its proxy. However, that Line is not then used as an Inside-Out Geometric Plane Line -- for Tracing. Instead, it is used as the Visual Equivalent -- of the original Plane Line -- for Covering (with the Clubhead). I might add that this substitute Delivery Line can be Traced by the Right Forearm (since it cannot extend in length and thus cover the Line as does the Clubhead).

2. The Swinger using the Arc of Approach actually approaches his Delivery Line (the Plane Line) from the inside (on that Arc). The Hitter using the Angle of Approach (covering with the Clubhead -- not Tracing -- the Inside-Out 10-5-E Baseline as the Guide Line) does not approach his substitute Guide Line from the Inside. He is already on it. Hence Homer Kelley's famous line:

"There is no Angle of Approach to an Angle of Approach..." (2-J-3-B).