I have a problem too, but I don't know if its the esc. I have a MMP system with the 5700 kV motor. Almost everytime I accelerate hard from a stand still or low rpm my truck will move then suddenly slam on the brakes then take off again. I only ran it once and nothing overheated. Everything was running nice except once in a while it would just slam on the brakes by itself. Also I am new to Lipos and Brushless, how exactly does the lcv works in the esc? Will it just stop sending power from the battery so the vehicle won't move at all? I am using a 5400mah 20c 2s with my MMP system in a sc10 4x4. I've only ran it in a parking lot, and it ran for at least a half an hour with no overheating. When I stop using it the truck was still pulling hard like there was still alot of power in the battery. Should the battery be lasting that long? When I programmed the esc I set the lcv too 6v.