Xardas26, I'd recommend a bit different setup on the throttle. I've used and seen several others who used that and it worked for a while but it always seams to fail eventually, i ended up setting mine up with a Ny-rod cut and a length of fuel tubing glued to the two pieces with 1/4 inch between the ends of the Ny-rod, even the Hitec HS225bb's gave out on me after 5 or 6 flights with your type setup. My Jett 60LX is turning an 8.8x8.75 @ 21K static and your Rossi should get up there in RPM as well and that just destroys the servo.

kc

EDIT: on the deflections i use 35 degree each direction for both aileron and elevator, i don't use expo myself but I'm odd that way it seams. also it hand launches with authority, i do have to tilt it to right wing about 4" low as the torque of the engine twists it as you let go.