I would quite happily do Dundee to Penzance straight through on voyager, then some moves overnight to get back to Penzance, for Penzance to Dundee on straight through voyager,no window seat near loo both ways, then sleeper berth to London to keep within rancid levels then shower at Euston in morning, before carrying onwards and upwards. I would go for all possible bonus points however gnarly the unit etc, or festers in godforsaken places etc, obscure places and services happily covered, I am a total crank when in mood to be one. and was a hard core loco basher in the past, regulary heading to Scotland for 37's etc.