NYC Niagara 4-8-4 and 14 passenger cars PM'ed.
Strange in that all these car's wheels were clean. I cleaned them, anyway, but it didn't take long.
Two cars derailed twice. Checked gauge, all wheels make contact with rail, no diaphragm binding so I added some weight to them and will retest. Some cars are by Walthers but the bulk are IHC and don't weigh much. All the IHC's wheels have been replaced by 36" intermountain wheel sets.