[dkerby]

Jeff, I don't have a picture of a straight line delivery path.
If one comes across I will let you know.
Maybe their is a curved arc or J-shaped path. The procedure
is called an Arc of Approach. Homer does say in 10-23-0
that the paths are taken by the hands - Not the club head
Your descriptions refer to the hands - correct. In 10-23-A,
STRAIGHT LINE, Homer says "This pattern holds the Hands
on a Delivery Path that is a straight line leading from the
Top-of-the-line hand position directly at and through the
Aiming Point (2-J-3) when there is no Plane Shifts (10-7)."
Homer mentions in 2-K that Only the Circumference is NOT a
straight line.

Even with a slight curve of the Arc, I do not believe that this
would be enough to invalidate the concept of the Endless Belt
Effect. The pictures of Diane swinging do not seem unusual to me.

Yoda put up some excellet pictures of of the Endless Belt Effect.
I do not know that he would want to get into the dissussion.

All the best, Donn