Ok gurus here is my problem, my setup: 3905 emaxx ga bulks 40 series mashers proline powerstroke shocks, neu 1515 1y mamba monster true rc 2s 6400 mah lipos in series 62/24 gearing. When i power up and run for a minute or two it run nice then it starts to glich and run in reverse and i have to stop it , Help!!!