I was very glad to be able to spot on Snow Hill; it wasn't always possible, because I once bought a platform ticket but was refused entry at the barrier because I was an unaccompanied child! However I still have some photos I took on the occasions when I did manage to spot there. It was the closest I ever got to a King.
Later on when I was training at a firm in Windsor House, Temple Row from 1966-1972, I was able to look out over the forlorn sight of the deteriorating network of lines to the north of Snow Hill station. Depressing!
Whisper it quietly, though, my best spotting memories were of the "other place", the ever grubby and busy New Street. There, I've said it!