[What's_nitro?]

Yes, thank you, but I know how to (re)program the radio to the BK. I did that for both of the other radios. By "reprogram the actual ESC" I was talking about the firmware inside the BK. Anyways it probably can't be done. Do you think the issue could be EM feedback? AKA certain speeds generate resonance in the motor power wires as the current through them is sufficient enough to create a field which induces a signal in the other two wires. This causes the BK to "spaz out" due to the interference. Just a thought...