I've had a DUAL VXL/ESC combo in my E-MAXX 3905 for over 20 charges and still running strong. We've run 2S (driveable) and 3S (insane) packs with out a single hicup, except for uncontrollable wheelies and tire ballonning.
See mine @
http://www.putfile.com/carguy70001/images/172742