I think my post was a tad redundant with such excellent description from you shootin! :P

But now I'm going to bring up something which nobody likes - the hands. I know we are supposed to uncock the right wrist to generate power at impact, so how does that affect the bottom of the arc? It (uncocking of the wrist) also sounds like something which requires a lot of timing and a risk to consistency. I bring this up because you mentioned that we do alls of funny things to get good square impact even though the other parts of our swing might be wrong, and I wondered if this could be one of those things..