I have had 2 of these planes and one had the Futaba 3004 servo's and the other with Hitec 425BB and never had a problem as far as servo's go.
The elevator is very sensitive as previously mentioned.
I was out flying mine yesterday as a matter of fact,watch you airspeed on landing,get to slow and it will snap and tip stall into the ground.
I really love mine..its not a ho-hum boring flyer you have to really fly this plane.[sm=lol.gif]