just got some brand new ar7's and i ski about 70% park 20% mountain 10% backcountry. i had my 2010 dumonts centermounted on 176's. these ar7 176's are about 3 cm taller which doesn't make sense. should i just center mount these puppies again. also should i put my sth14s on the ar7's, leave them on the dumonts, and just buy some new bindings for the ar7s? if so, stick with sth's?