Tony
I particularly enjoyed your lecture on Sunday at the NEC on making the prototype fit the available space, in which you highlighted some of the shortcomings on Little Lytham, in particular the M&GNR part. The line may curve the wrong way and be a very tight curve, but the overall effect is still convincing.
I was struck by your one third rule - I had heard in relation to the depth/length of a layout, Iain Rice being a particular advocate of it, but not in relation to the train/layout length - applying that to my situation, my five coach expresses are just right. This is the situation on Bradfield Gloucester Square, where five coach expresses don't look too short!
I am also reminded of Barry Norman's book on layout design, where he devotes a section to selective compression - people should get hold of a copy, it makes for very good reading.
Stephen