Hah … how about tennis or golf ? 
Seriously, that's pretty close, Dave. Attached is my original plan and Jan's tweaking of the yard. It must have gotten tweaked a little more because I have 8 sidings, not 7, but it is very close to what ended up being built. One of the sidings extends all the way through, but I use it mostly as a storage siding.
The outside loop on the far right side is elevated and there is a long tunnel across both loops on the straights next to the wall. I also removed the top half of the wall so the layout extends flat all the way to the left of the far loop. There are also O-72 cross-overs along the inner loops on the right.
Appreciated.
