Todd & Tom
Just to bring this thread to a close, all is in place and working. I did manage to louse up one of the clamps' placement, Todd, and jump across the "isolated" gap. Ooops! The only thing I did not get to do was actually build a shack. I told my father-in-law about the project and the next week he came back with two towers wiht the switched rigged to the signal. Nice! I'll post photos in my "Progress on the Triple O" thread.
Oh, and Tom, we have not tried three train operation. Two train was sufficient stress for me at the moment as the crew learned their roles as yardmaster! Still, this has added fun new dimension to running the Triple O and was a key part of keeping projects one step ahead of the kids to maintain their interest!
Aloha and Thanks to you both!