It's an interesting process on those tanks. I had to thin down the tank supports at the bolsters by about .030 to get the end walkways where they belonged, and then I did file the bolsters down so that the coupler boxes had about .010 clearance against the etched brass walkway. She's right down as far as she can go, now. That's one thing I do now across the board is see if I can lower ride height on a project car. It could use separate brake line piping if I was going to put any more work into it, but this is an operating, not display, car.