Hi Newbryford,
Curious that you mention that, scrolling through the thread reminded me that SNGs tender was used with Flying Scotsman on 'Mainline Railway Steam-up' on 3rd September 1983. Just for interest, class 86 Euston to Stockport, D200 from Stockport to Leeds. Flying Scotsman to Carlisle with 13 mk1s on a slightly greasy day, then class 81 back to Euston.
Great day!
Steve