yes, but my zero shifts ALL the time
a friend with similar setup never has that (he's got some generic one piece mount)...
it could be that i got a lemon:
it's said that mounts should be fixed while they're locked up. Mine aren't, one can move it 'up' with enough force (but not down). So it can move in transport.
ofc, i should probably do some serious research about that topic, it's putting me off the shooting, and it's a damn shame. i love ft.