I have a camera rig if anyone wants to stream it, its called "race cam" and currently floats above the track in 201,200,200
I think the main problem with falling off is that it takes a different approach to turning than that of a walled track. to turn without walls you need to lean to the right to turn left, and visa versa, this helps to turn the corners much tighter so instead of falling off the edge you stay in the middle or the inside of the turn. this is also good for the straightaways as it is a good strafing technique. also jumping is very useful for if you are going to the edge of the corner. my word of wisdom are these "if you can see a lightrod, jump forwards a small bit." and "keep aiming up at all times, this helps to make its smoother when you are leaning and will make jumping so much easier."
and not to brag or anything, but I might be one of the best skid racers on the server. :P