The only "beefing" that I did was to use carbon fiber push rods. I'm running a BME 44 and Hitec 625mg servos on 6.0 volts. Don't be scared of this plane. Just use good throttle management, as this is not a race plane! If you fly this plane as it is intended to be flown (3D, low throttle) then you shouldn't have any problems. I hardly ever fly mine over 1/2 throttle unless I'm going vertical. The large control surfaces will cause you problems if you try to fly too fast. Otherwise, it's a great plane!