I joined the club! Literally one of my first shots with the body yesterday evening. I was on a rush from the office. I stood there trying to shoot, checking menus to find out where things where, etc. I don't have an L plate yet, but the plate off my Mk2 fit well enough. 5Dc fits as well, but it will interfere with the cable release port for sure. Hopefully RRS will get theirs moving soon.