I'm having cutting out issues again. Because of some damage to my motor (co-worker dropped it) I bought a new motor (17.5MMM) and sensor wire (180mm) from speedpowerrc. I lost all drive power several times yesterday using several different batteries. Twice the system shut down completely and wouldn't power up until I pulled the battery plug and reconnected it. Would this be a on-off switch problem or is there something wrong with my esc. What can I do to test what could be causing the problem? ESC is a Reventon Stock Club Race.