I think I'm gonna run a receiver battery. The other thought I had was that the back voltage problem threw the main motor leads only happened when the motor and esc were turned off. Don't brush less motors normally draw voltage constantly? that's why your not supposed to leave them plugged in. My thoughts then are that with both escs turned on there would never be an instance where voltage could travel the wrong way, right? Or if I turn the drag brake up that would then increase that latent voltage so that if ever one of the motor leads were to come off the esc would still be sending voltage negating the back flow?
Just a thought