Good evening Bruce:
I am not sure if I missed your pictures, or am forgetful or what. What a neat system you have going there. Somehow I failed to notice your multi-level madness, which is even more remarkable considering your apparent tight space. I thought I had a tight space in my loft, you appear even more cramped in the attic! The multi-level design prevents the eye from taking in the entire system, which makes it seem bigger and more pleasant to look at. Do you have a track plan posted up here somewhere? Forgive me for being too lazy to search right now.
In other news, I had to totally re-design the pan shoes on the E44s. I had a slight snag last week, and subsequent tests revealed the shoe is a bit too short. after some minimal wear. A new design is afoot however. 
You should also post some videos at some point. Perhaps you have and I missed them. Forgive me again if so. Take care, and happy building.
(PS -- You coming to York? I live about 20 minutes away from the Fairgrounds).
