In addition to the outside stuff, IMO you need more patience. A GS turns takes roughly twice the time of an SL turn and in order to be constantly moving your body parts you need to slow things down, otherwise you end of in a partial park-and-ride. Now you are kind o static from the fall line and a bit forward, exactly where you need be be dynamic in order to keep the grip on ice. If you do it right it should feel like the ski edge is firmly planted into the ice, with no tendency to let go. On ice you need more dynamic skiing, but the natural tendency is to freeze up and become too static.
Jamt, can you give a physics-type explanation for why "being dynamic" helps one "keep the grip on ice" as opposed to park-n-ride?
I'm not looking for formulas or numbers. I am wondering why I always feel more control if I keep moving instead of parking. It's not just because my muscles are primed to respond better to changes. There's something else going on, and it has to do with the ski-snow interaction.
I'm wondering if you can break that down and explain it.