What purpose does the external capacitor play on the ESC? Reason I ask this is I was considering removing it and resoldering the connections. The positive lead came off once a while back and I repaired it at the track, but wasn't really that happy with the quality of the solder job. The negative lead is still attached as it was from the factory, but looks like it could use a resolder as well.
Any chance this is the culprit?
ben