I saw in a previous post that you could put a G34 slide on a G19 frame, that Lone Wolf Distributors does it all the time. I've got a couple questions regarding that: 1. The Lone Wolf site says you need a dust cover. What would happen without one? Would you just have a gap under the slide where the frame ends? 2. Is the reverse possible, e.g. put the G19 slide on the G34 frame?