>>> with these assumptions, I would say we hit with the bat, ideally near the sweetspot with bathead moving in a direction opposing the ball/s trajectory. <<<
Hi Tom
We agree! As my post from the archives below illustrates, I to believe the importance of hip and shoulder rotation is their contribution to the real goal – accelerating the bat around to contact. This is why I think this post best portrays my philosophy of teaching sound swing mechanics.
Mental vision of the swing
Jack Mankin