Amazing work guys, I love it. Bruce your Bridge Work is amazing. Don your outdoor layout in very interesting. Everyone else, all the stuff you guys do is fantastic to see.
My 8 year old son has recently re discovered an 0-27 set I bought him two years ago with gusto. He has always liked trains because his grandpa is a rail fan and he is exposed to the stories of his great grandpa being an engineer on Challengers, 4-8-8-4's, Turbine Verandas, F-3's, etc. But his attention span used to be limited before in the way that helps to operate smoke, prototype effects, etc (his set is MTH Protosound 3). Now I get to "play trains" with him and we are looking to build a partial outdoor layout maybe, or an elevated room layout. Then I can buy "me" one of those amazing UP locomotoves to help play trains! (inset sinister inventor / doctor laugh and thunder...). I have to have 072 minimum for future plans but it looks like I have a lot of room to work with radius if I go partial outdoor (I can use very wide radius, more than 072). I have a covered deck in the backyard and we could do sort of what Don has done, in the post above.
Don are you using Atlas track or another "outdoor friendly" variety? How often are you cleaning the rails and do you have a fully detachable power supply setup to keep sensitive track power electronics relatively moisture free?
Thanks!