I know it's a few years late, but if you're ever heading to the Wisconsin-Illinois-Iowa area there are a few races down there. It's fun to go even if you're not competing because the machines are so interesting.
Just look through WISIL (WI/IN/IL) portions of recumbents.com
HPV Racing and Recumbent Events Updateable Calendar
If you're lucky someone might let you ride their lowracer, as they did me.
