So just to add another perspective on this (really not trying to stir the pot) I have noticed with my 6.0 harness that it tends to work loose too. Now here is the BIG CAVEAT. I have been wallering it all over the place working around it etc. I have tried tightening up the connectors and that does work but it doesn't take much to work them loose again. The one thing about that harness I don't like is that it is not really designed to free float the way our GPs force it to do. It's supposed drop in a hole to support it (I'm assuming based on the fact there is a boot with an oring). I think once I do the final button up it will be absolutely fine but if you start having any weirdness in your GP behavior, I would check and make sure they are still in fact tight. It may be that I just got a cheap one. I don't know. Like I said, I'm going to run it and I think it will be dandy in the end.