[dpvu]

I'm pretty conscious about switching the gun to safe whenever I'm not actually firing so it should be in safe when I switch batteries unless I had a lapse sometime.

Thanks for all your help. It's not a huge issue. I'm still thinking it's something to do with the gearbox not cycling all the way in full due to a low battery and somehow that keeping it in full auto with a low battery but I don't know enough about the inner-workings so that's just a guess. Either way it's not a gun-crippling issue, more of a small annoyance I'd like to get fixed for safety reasons and to stop the problem from getting to big.