I recently purchased the 80a esc with the v550 4200 kv motor. It is installed in a 2wd stampede with a 19t pinion and the stock spur gear which is like 86 I believe. I'm running a 8.4v 4200 nimh pack. The issue I'm having is the esc will reset it self when I'm driving. I'd say the majority of the time it is when I go full throttle which from what I have read has to do with the nimh packs not providing as much current as lipos. I don't have a lipo currently to test it out and see if it resolves the problem. Sometimes however though, it will cut out even when I'm not going full throttle. Also after it cuts out and turns back on, it usually has a big cogging problem and doesn't want to move unless I give it a kick to get it going. Today it was also randomly going full throttle reverse after resetting itself. I do have the glitch capicator installed