|it's not always the bio accuracy of the feedback from the coach that makes it valuable to the student, it is the light it turns on in the kids head|
The mechanism you described is still counter-rotation. The upper body winds up, then, when you relax your muscles, it unwinds, aligning the feet and skis with the upper body. Something must oppose this action. The upper body doesn't need to counter-rotate much, as I described above, because of its larger mass and "moment of inertia." But it DOES counter-rotate.
Unless the windup is followed immediately by the unwinding, in a non-stop "one-two" action. In this case, the mechanism is "rotation."
Or unless you stabilize the upper body with a pole plant, preventing it from counter-rotating as the feet turn--in which case the mechanism is the Blocking Pole Plant ("wrenching").
What you've described, very well, is "anticipation-release." It is not a separate rotary mechanism, but it can serve to strengthen any of the rotary mechanisms I've described. Like a baseball pitcher winding up before throwing the ball, or stretching a rubber band (anticipation), prestretching muscles strengthens their response.
[ January 18, 2003, 07:36 AM: Message edited by: Bob Barnes/Colorado ]