yes I know the feeling in fact thats why I got on here I've got a 625mg that does that in a tc3 but as long as it is in a buggy it is ok go figure? and I've got a 5625 that goes nuts when you hit the throttle and I've tried different receivers and speedos some one said they had the same problems w/theirs when used with airtronics radios they sold them and to people not using airtronics and the people had no problems. so what is going on.what type of radio are you using I wouldn't figure it would matter on a digital servo let alone on a regular servo but my digital will just sit there making all kinds of noises and you move the wheel and it will quit for a while