[Daryl]

Sure man . . . . if the TSP is a steeper plane stands to reason the hand path would be steeper no? So this is my submission . . . . you check most pros . . . the get on the elbow plane eventually . . . . question is why? Does physics have an answer?

The Right Elbow travels Down, Out and Forward.

An attempted Straight Line Delivery Path allows the Right Elbow to Clear the Right Hip, which is the Right Elbow Passing-by the Right Hip on its way to its Release Location (before the Shoulder are Square to the Baseline of the Inclined Plane). Only an On-Plane Downstroke Right Shoulder can Drive the Right Elbow past the Hip Front to a TSP Location for Release and Only if using a Rigid Power Package. Go to the Top of the Swing and aim the #3 Pressure Point at the Ball (with a fixed right elbow) and don't allow the pivot to disturb that alignment. Actually, the Right Hip Stays (Back) out of the Way of the Driving Right Forearm (Rigid Power Package). If you allow the Hips to move toward the Plane Line (Standing up) getting out of Posture, then typically a "Blocked" shot occurs.

Otherwise the Right Elbow will be Driven to in-front of the Right Hip (elbow plane - not clearing the Right Hip) for Release, because a pitched Elbow cannot travel any farther Forward On-Plane. This is normal for anyone who straightens the Right Elbow during the downswing before Release, because doing so stops the Right Elbow from being Driven farther Forward. It's a simple procedure. Go to the Top of the Swing and Rotate toward Impact and the Elbow will get stuck in-front of the Right Hip (Elbow Plane).

Use this simple test to see how far the Right Elbow can travel when the Right Hip Doesn't interfere. Address the Ball with your right foot about 15 inches directly behind your left foot. Using Short pitches, notice how far the right elbow will travel before Impact.

When the Left Arm, at the Top of the Swing, is Closer than about 45 degrees to the Chest, you'll probably end up on the Elbow Plane anyway.