Running post war engines and cars is certainly nice. The engines do run smooth and pull strong. I have tons of P/W stuff but its all in boxes, because from the MPC era on, the fast angle wheels provide a big advantage for pulling longer consists. If you oil the old rolling stock wheels well they do run OK but you are still limited to how many you can run, but like Arnold I run conventional exclusively for reliability and ease of operation.
BTW that's a very long P/W consist that you're running