I've got a Sanwa SRM-102 installed as the throttle servo at the moment - think it's got 3Kg/cm torque. Is that sufficient or should I look to buy a more powerful one? If I was to buy a new servo for the throttle would it be just a just of replacing the Sanwa with the new one or do different makes have different connectors to the radio gear? ie. would I have to buy another Sanwa if I keep the same radio gear?