[SECGolf]

I intend to unbend the right wrist (for pushing the grip against the clubhead lag) coming down, although the clubhead lag (or shaft flex) is too great to be overcome by the action and the right wrist still looks bent prior to or at impact. After impact, however, it is not!

I'm having trouble seeing how unbending the right wrist pushes against clubhead lag. I can only see how unbending the right wrist would actuate a throwing motion of the clubhead. I seems with a proper grip, pushing against clubhead lag would actually cause/maintain bend.

And if your intent is to unbend the right wrist, would it not be in the flattened conditioned at finish? I'd say for most good players that I see, yes the right wrist may tend to flatten at some point, but at finish it is back to bent. If the mind's intent was to flatten the wrist, I'd think that it would tend to stay in flatten condition.