The track is down in the garden and the trains have begun to run. There have been some problems but nothing I haven’t dealt with in HO before. One problem we have is with a gondola that keeps derailing. Upon inspection I can find nothing obvious wrong with the car. However, I was carrying it along with a reefer I noticed how light weight the gondola was. I checked with the NMRA recommended practices regarding car weights but I did not find any for G-Scale cars. From past experience with gondolas and flat cars in HO I know a car that is too light tends to derail on curves. Since this gondola is behaving the same I am thinking that this might be the problem. Does anyone have any recommendations?