[O.B.Left]

1-L-10. "The Lever Assembly must be driven through Impact by an On Plane Force (moving toward the Plane Line)." There is a lot implied there.

I'm also astounded by, amongst other things, 2-C-O Linear Force. Basically a description of how a non linear force (typical golf type force given angular motion on an inclined plane) can produce the same results as Linear Force. Too long to copy out.