Example PS1 checklist https://mthtrains.com/sites/de...shooting%20chart.pdf
There is also this PS1 reset related topic with good tips about PS1 https://ogrforum.ogaugerr.com/...2#156279535212874272
There are at least 8 different MTH N&W Y6B engines between Railkig and Premier made. https://mthtrains.com/prod-sea...ield_roadname%3A3954