RTR ESC Note of mention
 

I had a weird issue where I thought that my ESC was not "bound" because the ESC was lit up and beeping but nothing was happening, I messed with it for two evenings and stumbled across the cause. If you look at the wires leaving the ESC to the receiver tray they are attached by a plug and are not soldered in the ESC internally. Basically what I have found is the plug basically just "rests" on the pins, it did not "snap" into anything and it is a VERY loose connection and comes off VERY easy. I am not sure of a fix or what Axial will say but I wanted to mention it here if anyone was having any radio woes to check that out before flipping out and getting frustrated. When I get a response from Axial I will post the response. Hope this helps.

Re: RTR ESC Note of mention
 

I too have found the plug just doesn't really engage to the pins very well. This is the plug you remove to connect a Castle Link. I ended up tweeking one of the outside pins on the ESC just a little bit to make some friction. Feels a lot better now. Also take all the slack out of that cable by stuffing it into the receiver box better. This will keep it from flop'n around.