warner said:

ROTJ The speeder bike chase is already pretty good, but the acting from Hamil's part is terrible. Can you adjust the "side by side" part so that it realy looks more like the scout trooper pushes Luke off his bike?

That's fine as is I say. Luke's speeder seems to be stuck on the scout's speeder and, rather than ride it into a tree, he jumps off.
Not riding a speeder into a tree is totally the way of the Jedi.

If anything needs to be done with the speeder chase, its smoothing out the jigglies on some of the far away shots. The speeders in the distance really wiggle against the forest background.