Caught another J Train yesterday afternoon through Emerald Nebraska, a small town just west of Lincoln. This one with 3 Fuselages and 4 Skyboxes.
I returned to Emerald just before sunset and caught 4 coal trains (and an EB Oil train that was in sight before I had cameras set up) all within 20 minutes. Two of them were literally back to back, and came while I had the drone acting as a tower cam. If the battery didn't die half way through the second train, I think that footage would have been a cool timelapse. Two NS Gevos close out the rear end DPU on the last train, and that does it for this one.
After the J Train, try bumping the playback speed to 2x. It's interesting what becomes more noticeable across the horizon at that speed.