Not sure this is in right place. Now got a nicely balanced rig with one piece harness adjusted so that I can get to the valves easily then crunch. Getting in and out of it is a contortionist's nightmare. Have recently fitted the ND dryglove system and their bulk makes a quick don and doff from the harness all but impossible. Recently been reading about the cinch and wondered what views there are about it. Do I need a halcyon backplate; can it be used on my ND one? Should I wish to do GUE-F, not when but if, would it be OK to use.