Originally Posted by Lee Willis:
In particular, I recommend doing this and using all the largest and longest you have.
Lee:
That's a good list and I'd like to add a #6 and maybe a #7 that might not apply to everyone, but could help those who need it.
6. If you plan to run any postwar Lionel cars with sliding pickup shoes, be sure to include one in any consist you are testing. Look through your collection and find an operating car, or any car built in the 1940s, with a sliding shoe that hangs down the lowest. Tug this car behind the larger/longer items that you're using to test for curve, portal, etc. clearance. If there's an imperfection in any section of track (e.g., at a liftout or hinged duck-under section), the slider shoe will run right into it like nobody's business.
7. An optional #7 is to head up another consist with a steamer or electric with the flimsiest/floppiest pilot truck in your collection. Run it at top speed and any rough section of track (e.g., a transition of a curve up a slight grade and into a turnout) will be sniffed out by a pilot that tends to bounce around regardless, even on the best laid track. I have a Lionel 1060 steamer that I use precisely for this purpose.
HTH.
SJS