It was a magnificent run and the first time I had been behind a Deltic on the main line for about 26 - 27 years. I recall hanging out of a window in the front coach going north from Selby to York along the original route. The run back to Linlithgow ran as 1Z56 1600 off Inverness via Aberdeen , Dundee and the Tay Bridge, through Fife and over the Forth Bridge, reverse at Waverley and on to Linlithgow, 449.5 miles. Fantastic!