[golf2much]

G2M,
I understand your post- thanks. So the edge of the front book cover and the back book cover edge, as they touch or run through the wall - whether at an angle or when both surfaces are parallel to each other- create lines on the vertical wall that are always parallel to each other- even when the plane of the covers are not- that is when the "up and down" angle of the planes are different for the two- they both still create parallel plane edges on the vertical wall. Now, if the plane angles are not the same "side to side" and they go through the vertical wall then those plane angle edges will not be parallel.

Now, could you make another post and just tell me what edge of the swing plane and what edge of the #3 accumulator plane are parallel? I'm afraid of looking back at all of the other posts-as I have a fear of fog! So don't worry if your answer is really simple- cause that's actually what I'm looking for.
Thanks,
Mike O.

The plane Mathew defined as Jen's plane starts out at the top as vertical/perpendicular to the swing plane. As the left arm moves down towards impact, Jen's plane rotates to a point near impact that is parallel to the SP. Picture the book again; if the spine is aligned with the left arm plane and one cover is aligned with the swing plane, place the other cover at 90* to the swing plane. Now mimic the movement of your left arm and wrist as you approach impact and allow the upward pointing book cover to rotate as though the book is closing. The closing cover will move to and through a position where the once upward point book cover is now parallel to the SP. I'm still working on the relationship with the #3acc/wrist cock. Still some fog there for me too. Maybe once the graphic is finished it will be clear to me. I have some thoughts on this but I'm still thinking.

G2M