Esc your screwed just send it to Castle . The Motor is good i think just the bearings are shot .
Devil: I figured out how to make the Mamba Monster smoother to feel somewhat like a sensor system and thats using the expo on my radio to negative -4 it helped with wheelspin out of the corners when the dirt is dry.
Im not sure if thats the samething as punch control but from talking to somebody at the track it sounds like the same.