It took a while but I finally was able to detect the arcing at the switches by paying close attention to the rails. The stainless don't show the burn marks as wll but they are there. I have used some input from Michael at Gargraves and I have applied coats of finger nail polish to the sides of the offending rails. Care was taken to remove any excess from the top side so power could flow properly. I don't know how long the coating will last but we will see. The older Lionel trucks have a lot of wheel play and the wheels will ride over and contact the middle rails of the switch. The GREEN color is the edges painted with finger nail polish(bright red) so I can monitor wear. I'll keep you posted.
