Got a problem...Had V2 pro wth 422 for a few weeks now...going great...flashed 528 last night,ran 1 heat ...impressive,in the next heat(went down 1 pinion)was going great for half the race then went slow for a couple of seconds then stopped.turned the car off then on again same thing, it would rev a bit then slow and stop.Changed motors,flashed speedie again,reset radio...still the same...anyone got any ideas?