I often wondered why at some outstations on SH you would get a new crew boarding a flight just arrived from London, for example a 14:00 departure from Vienna or Zurich? I always assumed that the only crew staying the night would be those from the night stopper, and that they would then take the same ac back to Heathrow the next morning, but it seems that that is not the case (maybe to do with minimum rest periods?). Therefore presumably at some stations there will be two sets of BA crew staying the night? It seems that the rostering is a rather more complex thing that one might at first glance expect.....am interested to hear the inside track.