Ahh yes, I actually found out about this not long after picking up Akihiko, it seems rather useful, but the major downside of short hop canceling is the fact that 1. You cannot block while short hopping. And it doesn't help that you actually can't even do j.b until the peak of the hop. And 2. There's always the landing recovery, which you can cancel out of, but you're still gonna be able to be hit out of vertually any move you cancel into aside from DP. Basically what I'm sayin is short hoppin losses hard to mashers, and people (including top players) love to mash in this game ESPECIALLY against akihiko pressure. It is nice for baiting throws on occasion though especially against Kanji it can give him trouble