tinkering, tinkering, frustration, tinkering, and successfully resisted the urge to throw a beutiful USRA 2-6-6-2 in any direction available because it just wouldn't run.
Today, more tinkering, and I FINALLY got the big girl to run. Now she's smooth as silk, and complements my light mountain nicely running about the double looped mainline tracks.
After that, I had some fun with switching problems, as I moved the 2-6-6-2's flatcar train to the inner loop with the mountain, then into the yards, around the ballon loop, and the ever fun challenge of putting it back out to the outer main loop while moving in the opposite direction to the box-freight the mountain engine was pulling!
Later this week, I'll be doing more tinkering, as one of my switches (buried under a mountain!) is giving me some de-railing problems.