Kevin,
To build on what Carl said, later in that same thread Norm posted a photo of his old layout with the TT/RH in a different location and slightly different configuration. IMHO, the thing to take away from both photos is the configuration of the whisker tracks. Note that his are close together directly across from the entry and not spread out like a fan. You both have 9 whisker tracks, but his is only 4' wide and 8' long whereas yours is 6' wide and 8' long. I can't figure out how he did this in RR-Track because his whisker tracks don't line up with the TT in RR-Track. All I get when I look at his file is the same empty box that I see in your file. Maybe Carl can explain it. Anyway, the point is to measure your TT with the 9 whisker tracks and use those measurements when designing your layout, not the measurements RR-Track gives you. It looks to me like the TT in the RR-Track library spaces the whicker tracks further apart than the TT you and Norm are using.
