Here's my bet: If it's okay when you ease into the throttle, but stutters when you punch it, your batteries are too weak. The BKs do that when your batteries are a) almost empty, or b) not up to the task.
Try with better batteries, chances are your issues will disappear.
Daf
RC/DC - Brushless Conversions since 2000 !
>>>>>>>>> www.rc-dc.ch <<<<<<<<<<
ok, I'll try some new batteries. I've just been using the ones that came with it...so I really don't know how good they are or aren't. What batteries should I use? I've got a few fairly new 3000 packs that I put in my sons emaxx for him. Would those be decent enough to use just to see if that's the problem or do I need something better than that?
Good call Daniel, but he still needs to restore connector, otherwise he cannot re-program it or cannot enable/disable BEC, I do not know which one is broken i.e. close to the board edge (usual suspect, programming jumper) or second one from boards edge (enable/disable BEC). If it is BEC's jumper than he is Ok because he doesn't need it, better be disabled, but if not then restoration required.
To evader:
You can send it to me and I will recover it for you, just cover the shipment cost ($5.00 by priority mail). If you want I can add couple goodies to your ESC to improve it a little bit. If interested send me PM.