i have my bindings in the exact center of my skis. i like it that way. keep in mind if you do mount them that way you loose alot of "carving" ability. your turns become more of a skid
Why would you want to mess with your ski's carving ability? Skidding turns isn't skiing. There's nothing wrong with a forward mount, but as soon as you loose the ski's sidecut, your just on a 2x4. Center mount is cool for park only, a slight forward mount makes more sense for all mtn.
ive got mine at true center and its awsome, i dont think it messes them up at all, you could go like 1 or 2 back from true and it wont really make a difference.