Replying to How similar are last years Mo'Ships, to this years chronics

alright, ive got last years 172 mothership titanium, with look p10s mounted at the suggested spot, but now im looking into an all mountain/park ski to add to my quiver....i was looking at the chronics but im wondering if they are to similar to my moships....id be looking at a 172 or 177 and id be mounting them probly about +5 or around there...would they be good ski to get or should i be looking at something different...thanks