Ok some may think I am crazy but in my spare time I've been trying to put together Northern's unit diagrams for the current timetable (Dec 14-May 15)... Some interesting little quirks when you look into them! No doubt the project will throw up a load of questions that need answering, but one to start off with... What goes out on 3T02 0457 Leeds-Hebden with the 153? (153 ends up there having started at Cleethorpes the previous day!). This would work 2T02 back, then the 0651 Leeds-Man Vic and 0826 return. Whatever the 2nd unit is it works the 2126 Vic-Leeds the previous night to overnight in 10B with the 153 arriving at 0029 from Sheffield.