I can't figure out why my XR3i has no brakes. Ive completely read the manual and done everything that it said to do. No dice. I need something 75mhz, FM and I'd prefer 3ch, but 2 is ok. I was thinking of a M8 with a 75mhz module, but I have doubts if it'll work with my Hitec and JR rxs. (My XR3i didnt work with my airtronics rxs.) Any suggestions??