it´s about 2,2 kg airplane with a .46 powerplant

and I´m not sure if I can trust this 3/16 (not used to the imperial system so hopefully you´ll know what I mean) thick piece of wood linking the two elevator sections together

it´s quite flexible but I fear that it might break in high speed, high stress maneuvers and/or give away and make the aircraft roll (or is that normal that it gives away a little but not breaking in order for it to do a specific maneuver? I´m basing this on the "3D airplanes" in RealFlight G2 where the elevators move differently at full throw)
there is also the matter of the way I have balanced the airplane, I feel like it is way too much but that´s how I get the right CG

not quite sure about it
anyway... any input or comments would be appreciated