Originally Posted by Jaybird
I use 20% on the ailerons and 30% on the elevator. Experiment and see what works.
Those are good starting points, though I would increase the ailerons slightly to 25%. Also, I found the rudder to be VERY sensitive on the take-off roll, and extremely powerful in flight, so I put 40% expo on my rudder and it feels great!
For those who never use the rudder in flight, or don't know what it is, you may omit that setting...