Originally Posted by sharpedges
Supposing this is a worthy goal, by what means should he "clear his inside so the outside can do its job" ??? And what feedback during the turn will let him know if he's accomplishing this (in real-time)? Can you explain to him in plain English what you mean by "he is blocking with his inside?"
Good set of questions sharpedges! and deserving of clarification.
First, here is my rationale. We have 2 legs (term legs includes feet for this discussion), 2 arms and only one torso...one head also :-) The vast majority of our mass resides in our torso. So when we need to move our mass (provided we are standing) our legs need to work in an efficient way that does not block the intended movement of our mass. To execute a ski turn we need to move our mass to the inside of the turn.
It is my experience that since the majority of pressure we feel during a turn emanates from the outside ski, untrained (self taught) skiers will develop movement patterns to combat that force as it builds vs using (directing) the force. I know...."Luke, the force be with you". An important part of directing the force is participation of the inside leg and ski and many self taught skiers lack that ability.
Clearing (I also used the word "leading") :
Since our legs are in an independent relationship with the torso, we need to make sure that they are working simultaneously and in concert in order to move our mass in direction of intended travel. Ideally both skis should tip at the same angle and rate from the beginning of the turn until the end. To tip my skis, I begin by collapsing the inside leg on to the new inside edge which moves my mass to the inside. This clears the space and positions my outside leg to extend with the same edge angle as the inside. It is important to understand that this is a "both at the same time" activity. Because we are on a tilted surface a dynamic stance is created that positions our inside ski leading the outside and creates a powerful countered position at the hips/pelvis where the legs meet the torso.
Versus the above, if my first goal (at transition) is to develop pressure on the outside ski the tendency for the untrained skier will be to move mass to the outside since at transition we are in a gravitational mode. If that happens, your outside will be compressing and your inside will not be collapsing and will be stagnant at best therefore blocking movement in the direction of the turn.
In terms of Feedback. In order to get my inside engaged, I like to monitor the pressure of my inside shin against my boot tongue and focus on keeping my inside ski underneath. Once I do to that, I have a more robust ability to feel the pressure inputs from both skis vs one.
Here is a LINK to a video by JF Beaulieu on developing new motor patterns. Especially listen to JF from 2:13 to 2:27.
Let me know if I am off base here and thanks for letting me put my thoughts down.