The custom and custom x are 2 completely different boards. Besides price the custom x is an extremely stiff unforgiving board. With that being said if you know how to ride it is an excellent board, mainly for freeriding. It is a very fast board and carves like no other, it holds an edge extremely well. It is definitely not a park board, pretty much the worst one you could buy for rails and such. It is good if you are only hitting jumps though, i do quite fine on mine. The custom on the other hand, i have no real experience with so i cant really comment on it, however you may want to do a search, i seem to remember seeing one or two of these threads before.