That plastic piece you slide onto the camera and gimbel to keep it from slopping around during travel. Every time I put it on, if I even just pick the P3P up, it slides and falls off. Is it supposed to be that loose? Is there supposed to be a clicking noise when sliding it on to know its in the whole way? I can't put it on there and expect to take it anywhere without it falling off. On top of that, how bad is it to ride in a car without that piece on to stop it from moving? Will that cause major problems or am I being paranoid about it. Just trying to care for it as much as possible. Thanks.