in addition to the well known rlidwka, there are also some extra, "reserved" acl bits: ABCDEFGH (PRSFS_USR0-7) AFS currently uses none of these. I know of a site which used G for a while to encode that group rather than owner mode bits would apply to people with that bit applied to them. Is anyone else using these bits? If not, I have a proposal for one (presumably A)