Do not use needle nose pliers as they can introduce sharp kinks which would be derailment-prone. I used small duckbill pliers, and tested each bend with a freight car truck as I went along, trying my hardest not to overdo it lol. It's Code 40 HOn3 in the sepia picture. Here's another one, from Sarah's Valley.
Regarding John's last post. You can use the same technique in N Scale and end up with something similar.
I have a small chisel (not sure if that's exactly what it's called) and I tap the track with the chisel and a hammer. It takes a couple hits to be noticeable at all, and I usually do this on spurs, sidings, etc. Then some paint, and well-placed static grass tufts that won't even risk impeding operation.
