you know the KGB?
it's a no whip backflip with a backside 360 handlepass on top of the rotation.
i think a big 1440 with a grab's ok, but only if you do a quad boardpass in the same jump
there are insane possibilities ...
the pitbull's a loop over the bar (2 line kite, long bar, small board, and a high jump requred)
i've seen a rider doing a 1080 or 720 backwards and a 360 forward in the same jump.
just let your imagination play, there's lots of possibilities of tricks that always were impossible in every other sport.
we dreamed about jumping up and turning the board in mid-air in '2000 but never thought that it's possible and now, every rider at contest level does that ...