Try sidehops also. And pivots.

Sidehop: Just pretty much lean to the side and then bunny hop and the bike will come to underneath you, heh.

Pivot: The way I do it, lean back, down, and turn to my right, then hop up and un-turn really fast and see how far I can make the bike turn. I can get about 90' rotation after some practice (It'd probly work for dropping it if I was brave enough); maybe after a while I'll be able to 180 that way.