Only because I love skiing and am here to learn like everyone else, I'm going to continue.
Now, do my drill above with a boot described by Bud, and a nicely tuned SL ski in a 160cm on a fairly steep slope.
(Go someplace where nobody will see you. haha)
Now give it everything you have on these movements, meaning, over do each movement of 'rolling your ankle', long leg / short leg, a stable core like you are are going to TAKE a stomach punch (not a sucker punch) and you will think your name is Marcel for five seconds. If you don't have enough pressure when you invert your uphill foot (little toe / big toe) beware. (edit: The first movement should feel like you are falling, in fact, making your self fall with the little toe feeling. At the fall line you will have pressure built on the new big toe and will be out of extention - time to release and reverse. Remember, the letter "C" looks like half a turn. A turn looks like an "S". (thus, reversing the movements of inversion and eversion, flexion and extension, etc.)
Sorry for the edits.
Edited by Crud Buster - 11/27/13 at 10:28pm