[MizunoJoe]

How bout the bat lies flat against a vertical plane through the left shoulder?

HB

The leading edge of the face does, but it's still not a bat, because if you turn the LFW, you're rotating the whole club, including the sweetspot. The clubhead is just the last short piece of the long bat.

AJ thinks that the clubface rotates around the shaft, which is why he calls it "da bat". Moreover he thinks that the rotation of the clubface speeds up the sweetspot. I thought so too, until HK pointed out that it's actually the shaft that rotates around the sweetspot. The only way to make the sweetspot go faster is to swing faster or drive harder, and no amount of increase in rotational toe speed around the sweetspot will add to it, because the hosel is backing up as fast as the toe is going forward.