[ohgolfer]

Martee:

Brian Manzella talks about this in one of his videos. In hitting, Brian talks about resisting the turning of the forearm on the backswing by trying to keep it perpendicular to the plane. But his pivot makes it look like the forearm has rotated. In swinging there is a 1/4 turn of the forearm so the left hand faces the plane on the backswing.

I probably butchered it but thats what I remember.

Terry