I'm looking to buy a esc and a new motor also.I've been running the GTB and was happy with it until this past race day.Another driver whom I've always been faster than was 8/10s faster than me.It wasn't that he's improved as a driver,he was still blowing corners and couldn't run consistant laps.It was just that he could cut a lap here and there that were ballistic. I think he was running a Tekin and a Trinity duo.