Bob C - I don’t think that you can have too many cars UNLESS you have so many that there is no space left to make moves. That happened to me and prompted my building the large fiddle yard shelving in my basement. Once I had used the new yard to clear some tracks, things began to move again. My remaining problem is that it only moves a the same few cars each session. Probably because I don’t have valid destinations. I learned just recently that yards don’t change a load status which is why I need to re-think the whole game.
Bruce has had a lot of experience running JMRI Ops, so he’s probably right that I need to go in and tickle the system to get stuff moving again. I’m sure that will happen before spring. I’m having too much fun right now doing loco conversions.
One great feature of JMRI is the detailed build report. If you have the patience to comb through every step, you will find out why it is, or isn’t moving each car.