Part of the reason besides being so small was my problem solving bias. I was so sure that the track work was the problem since it had been up till that point, I had no reason to think beyond it. And I have used my phone as a microscope, especially when reading that insanely small lettering on the instructions that accompany some medicine bottles. I also used it to decipher the serial numbers on Apple products.
Good news! I got paid for the remainder for the n-gauge railroad. He'll be picking it up in a couple of weeks. Now I have to make sure nothing happens to it between now and then.
Then I wanted to ressurect some cars that I hadn't taken out of the box for over 14 years since we moved here. This was a nice full-length, aluminun extruded Weaver passenger set of the Pennsy "Fleet of Modernism" design that looks so spiffy behind GG1s, the one and only S1 and the T1. But these cars were terrible. They had the worse couple sets of any cars I'd ever owned and when I rebuilt the layout I didn't take them out of the box. In my old Pennsy iteration of the layout, my track spacing was too narrow (3.5" c-t-c) so when a train ran on the outisde with these long cars, some equipment clipped them on the inside of the curve. With my new layout, I purposely spaced everything wider than that so I could run any length equipment. Now the only restricted rolling stock is my very nice MTH railway crane and my Schnable car which can't make it through my tunnels.
I decided to find out what I could do to fix the awful couplers and approached it two ways. Here was the problem: Not only was there this height mismatch, but the lock pins wouldn't stay put and I was resorting to orthodontic rubber bands in some cases and twisted wires on others.

I shimmed one set so it would raise the coupler height. This worked.

While it did work, I realized there was a better way. I undid the chassis so I could slide it out of the extrusion enough to give more room around the coupler, and then simply bent the frame that held it all, upwards which raised the couple height. The shimming method created its own problem by forcing me to re-bend the uncoupling lever so it would engage the coupler sufficiently to work.
With the cars functioning, I lashed up a train and ran it around a bit. The uncoupling buttons on some cars are still too low and cause some sparking when the pass over some of the switches. It's not causing any electrical glitches so I'm not worrying about it. Here's the train.





The set also has a baggage car, but it doesn't have any trucks on them and I haven't found them yet. So it has a heavy weight baggage car, which, if I'm not mistaken, is not so far from reality. These cars were designed and built by weaver before the days of separate grab irons, sprung trucks and spiffy interiors, but the paint job is specatular. Most Pennsy fancy trains did NOT have round end observation cars. They had flat-ended ones. I don't know of anyone who's made them in O.