Mike I have the same plane but use a Saito 1.80. To get out of a flat spin I just go to idle and neutralize the stick. Mine will spin maybe 1/2 a revolution and stop. The nose will be down. I use about 1/2 power while in the spin. This will slow the decent.
A flat spin is one manuver that will loose alt. Some planes will climb in a flat spin with full power but not many. The rest of the 3D stuff takes lots of practic to hold alt. Like a rolling harrier. The thing to remember is use the throttle to get out of trouble not the elevator. The plane is flying on the prop for a lot of this stuff not on the wing like your average sport plane. Your left thumb will need some training. I learned a lot of 3D on a SPAD3D. It flys awful on the wing. It must be flown with throttle 90% of the time. I learned more flying it for 6 months than I learned in the 5 years prior.

David