Armada mounting question

First off hi all, just joined and hope i put this in the right section.

so i just acquired a pair of 2009 armada arv's 175 and they are not center mounted and the recommended position is way back.  I want to center mount and try the whole park thing out, its brand new for me.  by the way Im not concerned with all mountain performance because i just got the new k2 shreditor 112.

so what im thinking is if I take the binding off, measure and find center and literately measure off the old holes and move the binding accordingly.  for example i was just playing around and it looks like the whole binding will move up 3 inches to move the mid boot sole mark up to center.  is this correct? im also aware that the binding has to be centered on the ski and what not

Thanks, Alec