Totally agree, except to say usually there are no customs officers at Southampton, so there is no hold up there. Over the years I have never seen one, but that is not to say they can’t suddenly appear, and, inevitably, if you are in a hurry, it is you that gets stopped. Again, immigration is invariably done on the ship, except once this summer, they had a blitz on all the ships in Southampton on a particular day. Allow longer.