That's what I do, the 185CDI anyway runs from 0 to 25% Nitro, I fly with 25% Nitro as I want all the power I can get from the engine.

And really habe not need it yet...... On the first flight I did with a new engine on an Acuracy Bipe I did three consecutive vertical rolls before ran out of speed with just 4 clicks of throttle, now to me, that's insane power.