QUOTE: Originally posted by odellgb What are the top two reasons real trains "jump the track" (not to get to the other side) but because the trucks are screwed up or the track is screwed up. Putting more weight in the cars is a cheeters solution. If the track is laid to scale prototype curves and grades then the only thing left to check is to see if the track is in gauge and if the wheels of the offending rolling stock or locomotives are in gauge.