I put a 5645mg in my ofna 1/8th scale for steering. I am running a JR r300 synthesixed receiver and a JR XS3 remote. My problem is range of motion. The steering rack has a ton more range than what the servo is turning. I have adjusted all the endpoints etc on the radio. I bought the servo used could it have been programmed? Or is it not happy talking to my JR radio gear?? ANy ideas??