Former LTU, presently Air Berlin has MFF on the A319/320/321 and A330-300 and A330-200. Personally I would rather fly A330 and skip the MFF. After AB took over, the A320 makes the schedule a night mare. Minimum rest on the 330 filled with an occasional 320 flight make it hard. The good thing, as an SFO relief pilot you only fly the 320 ones a month. You just have to accept the dumb comments for a possible early flare from an experienced A320 non MFF captain.