Here are designs for my layout discussed in "good news - bad news" Please let me know what you think... Sorry if they're hard to see - the part I cut off is just a curve around. The first one is the main line, essentially at 0" elevation. The second one is the upper level, which starts at 0" by the yard and climbs at about 1% grade up to 6-7" at the mine/logging camp. Kris PS - In answer to the first question my club friend asked... I'm DCC so the multiple Y's and Reverse Loops don't present much of a challenge - I've already got the auto-reverse modules from Tony's and they work like a charm.