Daryl,

I fly an 8103 and for most of my fun fly type planes I start with +50% on ailerons and +25% on the other axes. Then I adjust after flying if I need it. On a slightly tail heavy TopCap, I think I'm using +50% on elevator. It can get a little jumpy when the fuel gets low. I figure if it's nice and easy to fly without expo, it doesn't have enough control.