LOW337.....I like your post. Here is my take. I do believe that there is force against the ground and big league hitters use force to move Laterally. However, I still believe that the rotation of the hips is what makes that foot come off the ground. But, I also believe that the force against the ground is what gets that hitter to transfer his weight pressure from his back foot to his front foot.
I have a friend who does a demonstration of how the swing starts from the middle. He does this by jumping in the air and then rotating. But, in his demonstartion, the hips do not turn until his feet have returned to the ground!
So what I see in big league hitters is force being used to move the body laterally then the hips turn the middle and as a result the foot comes off the ground.
I like your ice theory but along the same line. Wonder if there could be a resistent hip turn while being suspended in the air?