Howdy, Leo! I've been to two of them, when I could afford the cost of the trip, and when the car I still have was less than 15 years old . . I had a great time my first trip, and would rather forget the second.
Meanwhile, I ran a Google search for Cholla Choppers (the Tucson sponsoring club), and got to here:
http://www.ccmaconline.org/There didn't appear to be any link to anything for a VSC beyond the one just ended three months ago, however.