I don't know about the others but I can definitely notice a difference when the binding is moved 1cm forward or back. A couple of my skis have demo bindings on them and sometimes I play with the positioning. Even my wife who is an intermediate skier can tell the difference when I adjust them by 1cm. On women's skis they usually recommend setting them 1cm forward of center, which is what I do on her skis. We have the same boot size so often swap back skis back and forth. Which. btw is a great way to demo when you're on the hill, you can do the same runs under the exact same conditions and really determine the difference between skis.
I usually just leave mine at center because it feels the most optimal all round for me. I guess it really depends upon the ski and the skier's anatomy as to what will works best. You do adjust to whatever your settings are and then you just plain don't worry about it anymore. I find its sometimes better not to fret about the little stuff and just ski and enjoy.
[ October 19, 2002, 01:04 PM: Message edited by: wizard ]