Although 3/8 of an inch up/down is recommended by the manual for all-around throws, I like more conservative throws on my dust and have set up dual rates:
For LOW RATES, I use:
4 mm up/4 mm down for ailerons
5 mm up/5 mm down for elevators
You can swich the ailerons to 5mm up/down to match the elevators.
For HIGH RATES:
I put the ailerons on full rate (125% throws), but only do that at higher altitude and for brief periods of time (when I want to roll like a drill bit

).
The rear CG limit is the rear fuel tank bulkhead (where the forward spar is). The forward CG limit is .75 to 1 inch forward of that position