I have used one as a steering servo in my mbx5t and am now using one in my jammin x2 crt as a throttle servo. As long as you have the receipt they offer a lifetime warrenty. Customer service is real good. My next servo will be a xp just for this reason. I do have a buddy that has had a couple of problems with his 1015 and he talked to someone at the factory who said that he thought that the 1313 was a more reliable servo.