[MizunoJoe]

I respectfully disagree with clubhead velocity drop due to impact energy losses. I'm not saying PA2 fully spent before impact.

IMO, aiming for a Level L wrist at impact, at the least, brings out a host of other problems due to Sweetspot being aimed to be under plane at impact. I mean, a Level L wrist is essentially an under plane Sweetspot at impact. So you have to deal with that, and IMO the actions needed to deal with it causes power leak.

Clubhead velo loss due to energy loss at impact and level left wrist at impact are in the Yellow book, so you're disagreeing with Homer.