Before anyone says .... yes I have practiced, am currently running at 60 stability but just seem to crash off every jump, I can clear most jumps now landing smoothly on the downside if I stay straight, just as soon as I try even a small whip thats it I seem to just crash...

Can anyone suggest some tracks which may have jumps which are easier to learn this technique?
If it makes any difference I use a xbox 360 controller????
Any help appreciated cheers............