Good point, I did find the two-wheel rear truck kinda' odd. FWIW, when I got mine the frame was actually bent a bit from shipping, it's just a flat piece of steel and easily deformed. That was enough to lift the rear wheels slightly and make it hop down the tracks.As far as the rear lights,
I like the idea of some added weight, though I might not go for the full three pounds.
I'm not sure how I'd deal with the forward/reverse aspect back there on the other end without a lot of wiring between cars.