[Daryl]

This first drawing is were D and I have a difference of opinion. The Angle of Approach should maybe be left for a later time eh D? Do you have the Angle of Attack handy? The attitude of the clubhead through the very minute but all important impact interval. It should be tangential to the orbit, no? Pointing more down as the ball goes back (up and in) the stance.

Wait, allow me a minute to understand your point so I can correct the drawing.

Are you suggesting that anywhere on the circle the ball is struck before Low Point, that the shaft needs to be at right angles to a line ............

I mean, we have added "Hook-face" to divert the ball from its true tangential path. Besides, anytime the primary lever is Turned, the shaft would not be at right angles ........

Help me out here. The bottom drawing shows that the clubshaft is not at right angles until Low Point because the Left Wrist is uncocking and the Primary Lever has not become Vertical.

The Top drawing represents a shaft-only orbiting around a circle and because its center of rotation is the center of the circle, the tangent will always be at right angles to it.