I am buying some suspects and the guy at the store said i should mount the binding about 3m from true center because they are asym skis. I ski park and groomers, i told him i wanted them mounted in the center and he said it would make the performence suffer. Do you think this is true? I think if i mount them back a little it would be harder to do spins and grind what do you guys think? PLZ HELPPP