Moose running a Bachmann Spectrum Doodlebug around a wee Kato test track to break it in. Yes, Moose know, Moose know, 8 1/2" radii curves with 9 3/4" radii easements are probably a wee bit tight for this feller. So far though, she's doing fine. Started out not wanting to move at all in reverse and quite a lot of stuttering in forward direction, but ~ 30 minutes at different speeds, forward and reverse, is loosening her up well. Still has problems at low speed in reverse, but that might be expected given the tight radii combined with her length and single powered front truck.