[Mathew]

In 1-L-11 Homer states that clubhead force and motion is on plane at right angles to the longitudal Center of Gravity and varies with the Speed, Mass and Swing Radius.

I don't understand this sentence because im unsure what the longitudal center of gravity is.....

In 7-3 Homer says that the on plane Right Forearm shows the precise direction it and the clubshaft must take throughout the stroke.

now I know that per 1-L-5 The clubshaft lays full length on a flat tilted plane. So my question is when we turn our hand so that the palm is touching the plane won't the whole right wedge come off and the right forearm go below the inclined plane due to the impact fix degree of bend in the right wrist?

In 2-C-1 what does Homer mean when he says the angled clubshaft and the closing clubface are rotating around the same center?