Obviously, we failed to change each others mind. Perhaps if I were more knowledgeable or used video I could have explained my thoughts more clearly.
I'm convinced that Uncocking and Rolling on the same delivery Line is a problem for most Golfers. I thought that Uncocking off-plane was an easy point to illustrate. Once one learns to Uncock on plane, he needs to understand how to roll on the same delivery line. That's more difficult to illustrate and explain even though it seems completely clear to me.
I think that Hitters and Swingers have different Problems and maybe this is one that Hitters don't have.