I have a krytac CRB mk2 and for the time being (until I switch to hpa) I’m running the stock gearbox with a PTS EPG-C grip, but there’s a problem. The motor whines no matter how I adjust it and the wiring issue is weird. Also the screws for the plate stripped so I had to bust off the plate in order to get whole grip off. I ordered a second epg but I wanna know what else I can use without the previously mentioned issues. Thanks