the Dimenions for the ar6's and PC's are as follows..
The dimensions are almost exactly the same, the PC's being a tad bit slimmer than the ar6's. But the main diference between the 2 skis is the base. PC's have a different, more race like base for keeping up speed in the pipe as well as jumps. And u must wax this base more than u would wax a normal ski, treat it like a racing ski if u will. If u are going to do mainly jumps, and not alot of rails, id go with the pipecleaner. They have the same edges as the ar6. Teh ar6 is an excellent park ski, my friend has them, and he loves them. They have the same dimensions as the t-halls also, but the t-halls are just a bit softer for mainly park use. i hope that helped u a little.