I recently became interested in Pecos River and other large scale sized freight cars. Mind you, this issue is not solely a Pecos River issue. I have a couple of other various cars that behave the same erratic way.
I'm attempting to pull a string of Pecos River and Atlas cars scale boxcars. At first, only two of them would derail crossing one particular Gargraves switch. I tried weighing them down to no avail. Then I tried placing them in a different order in lineup. That worked for one only one of them. The other continues to derail.
I took a caliper to the wheelsets and all is identical and there are no obstructions on the track.
Come on guys, you are the pros. What am I missing?
Thanks - Ponz