#1 Remove the Brake shoes on the Drivers. at least the rear driver set
#2 The leeding trucks do have a proper direction that works better
#3 check all the air houses and lower parts on the bottom that might grab on things the same as you would check the coupler trip pin height.
#4 The Sound decoder does not like to be Programed in PG mode on the programing track of a Super Chief DC100 Digitrax,not enogh power to read. Try the PO mode on your Main line
Please reply add to the list,I really like these engines and N scale needs more quality steam
