Stock - Simple reason when I rode mod there wasn't much I could do in it. Back wheeling / tapping was almost impossible. Never tried Hooks. Side hopping and up-to-front, side hops, and gapping were all pretty easy., bunny hops are hard Long Stock - easier to tap, when your techniques dialed. back wheeling is good as long as you have a good technique . easy go gap. hard to bunnyhop Short stock - easier to tap than a long stock. back wheeling easier too bunny hops are easier. wheel swaps/Bat mans are easy. At the end of the day its person performances, I have tried everything apart from 24" which I'm temped to. See how much money I get for my 18th!