So my Rapido 15xx arrived stateside the other day, cosmetically very nice, a couple of very minor glue marks but I'm otherwise quite pleased. It is lively on the rolling rolling road, about on par with some of my Bachy Panniers. The 15xx is geared higher than the Pi Victory, so this isn't a totally fair video, and the 15xx should settle down a bit on track pulling a train. Smooth as clockwork though, it isn't.
Steam Locs by Pete Piszczek, on Flickr