I have a newer camrig mount (the one with the green inserts so it does not slide). What I have done is take two inserts out and don't use them. Look at your lines and see which one acts at the safety (if you are running single line safety) then use the green inserts on the opposite line.
This will hold the kite mount in place yet also allow the safety to slide free if you punch out. I as well as a friend have both "punched out" with this set up and the go pro was fine, as well as the kite safety worked the way it was supposed to.
:edit: added sketch...