So am I correct in saying (if I've understood the A/S map correctly)
the Lowlander sets of 16 split into 2 sets of 8 at Carstairs, one for Glasgow & one for Edinburgh - does this presume there will always be 2 engines on this?
the Highlander sets of 18 split at Edinburgh, with 8 going to Inverness, 6 going to Aberdeen & 4 to Fort William - again I presume the onward locos are stabled at Edinburgh? These are diesels as there is no OHLE going north?