Justin,
If you're looking for somewhere a bit more local, we've currently got space at our exhibition at Kirkby-in-Ashfield, 12th-13th October.
Colin. ELIZABETHAN RAILWAY SOCIETY.
ers-showmanager@talktalk.net
Have you tried an insulating washer behind each crank-pin, particularly on the 'pick-up side of the chassis. This has worked for me in the past, particularly on old Triang chassis which have been fitted with Romford drivers.
Colin