Using a ticket where break of journey is permitted, is it permissible to break the journey at one station and resume further down the line? For instance, on a Penzance to Plymouth journey would it be allowable to get off a train at Camborne and rejoin a later train at Redruth? To take an extreme case, could one break an Edinburgh to London journey at Drem and rejoin at Stevenage? In practice I am looking at adjacent stations where the calling patterns of trains mean that it would be more convenient to skip a few miles of the rail journey.