Evening all from Estuary-Land. Dug out my test track and I can report that the new loco runs extremely well. I was surprised to discover that it was quite happy to run smoothly at low speed, just as well as when running cab first it will stand on its nose when the power is shut off quickly, due to the combination of short wheelbase and top heavy white metal body. It doesn't like dirty track, as you would expect with a very short wheelbase. No need to replace the chassis, all that needs doing is a touch of paint and the addition of couplers.