RE: VXL?!!!
Ive never had any issues with a VXL cogging, but the LVC cutting out on 3S too early is a known issue and has been discussed here and on the traxxas forum. My theory is, its definatly a pain but its better to have it cut off too early than too late.
I sent my esc back and traxxas repalced it and the new one was fine. I have since sold it but it was a great system. One thing I liked about the VXL esc was that it was a piece of cake to switch the LVC on and off. Just hit the set button for like 15 seconds and it was done. The mamba you have to either hook up to a computer or go through a sequence of commands. Same as the novak systems.