Replying to Chronic/anthem

so im looking to get new skis for this season...either 176 chronic or 178 anthems..ski mostly park but like to take cruise runs and ski in the trees too.. but due to past injuries my park riding has become slightly limited...jumps up to say 45 feet but rails are still no problem. so my question is which one would be a better fit...and if the chronics, whats the deal with the recomended mounting point because i love center mounting and was wondering if the chronics arent really supposed to be