Hey Dilli Love the Madison style cars , had a few back in 70/71. The Burk is a good pairing with the cars, I had a 763 and then a scale out side 3rd rail which i converted. The problem I ran into, is that they , dwarfed the Madison cars , so the next step for me was the old Walthers heavy wht. cars, and I was hooked on passenger!
As far as the Modern cars an engines, they are long , and in my opinion, look off, even on O72. If you use the Gargrave , or any flex track, you can ease your curves from the lager to the minimum, you chose.
