11-27-2009, 07:24 AM
I have problems with some of these cars too. And I have removed the metal contacts you mentioned, with no improvement. I now believe the problem lies in the diaphragms. Some seem to be much stiffer than others. Watch closely at the point where you have problems, and I bet you'll see contact of the diaphragms where one or both refuse to yield. I haven't as yet done anything about it, I have problem cars sitting all over the layout waiting for some attention! I'll look forward to seeing if someone posts a way to correct this.