Dave,
This was what I thought was rock solid, moving the TT and RH off to the side like norm did. Then I think it opens the layout for more options. I though just having it in the middle visually made sense but as I read all these options, now I wonder if Norm has the right idea of segmenting it off to say corner H / G of my drawing then starting from that point.
I do like the addition of the purple tracks in from of the TT.
I am drawing out a few ideas on paper simple because for me it is fast. Will up load them soon. Alex gave me a few ideas that I like. The TT and RH configuration here is impressive.
K