[MizunoJoe]

Ben has a great pre-Impact position with max LW cock and retention. He says,

"As the club follows the lead of my hands & body, there is a natural retention of the angle that was formed between my left arm and shaft.

I am neither conscious or aware of this happening as I make my swing."

That may be true for Ben, but for most, that won't happen without a DIRECT mental involvement and training to get to that position. But that's only half the battle, you must also be conscious of LW maintenance through Impact and the correct amount of LW acceleration to get the shaft to lean forward at Impact. That is to say, you can get to that pre-Impact position, and still have the clubhead beat the hands to the ball.