Did you ever had any problems with the Futaba S9550 to center correctly? I bought one recently and had these type of problems. Maybe because it is so slim, it is not really heavy duty. This is my impression but maybe I am wrong ey
I replaced it with the Sanwa Hyper ERG-VRX (0.07 sec / 8.0 Kg) and was really impressed. This is what I call a professional servo with a heatsink built-in, etc
