Another thing I like to do with 3D airplanes with a rearward CG is set up radio programming for flaps/spoilers. The 9C does this easily. What I like is to add about 15-30 degree spoilerons when I land. This is especially helpful on windy conditions. This lessens the lift on the wing, and makes a quicker more predictable, nose down approach. It really helps quite a bit. The guys in the pits are all screaming "Did you see that? He landed easily with all that wind. I can't believe it". Of course after touch down I dial the spoilerons back to level then taxi into the pits. No one is the wiser.
Thanks,
Barry