RE: Diablotin
I flew a DiablotinXL with a zdz40rv-l for a while. I started out with spoilerons on when I did elevators and harriers, but once I got used to it, it really didn't make much difference whether they were on or not. The biggest enemy to elevators and harriers are wind gusts, it can be scary getting close to the ground on a gusty day he he.
DKjens