John, Clyde and Summer,
I have to "fess up"... I have always wanted to learn how to drive a semi. Not necessarily for any other reason other than to say that I have driven one. I have driven pick ups with the shift on the column, farm tractors, VW bugs, I can back a trailer hooked on a pick up truck -- but I have never driven a Big truck. Someday.... before they take my license away from me, I plan on doing it! If it has wheels and an engine, I'm interested in it. And, yes, I am a NASCAR, NHRA, USAC, IRL fan ... like I said, wheels and an engine!!!
So, Summer, thanks for asking all of your questions, and thanks to John for answering them. I'm curious too.