My wife had tried before to pass the motorcycle endorsement class but had trouble on the motorcycle, which wasnt a huge suprise since she had never even ridden a bicycle before! Since an endorsement is a requirement to ride here in Florida, I did some digging and found some Trike/Sidecar specefic classes. It looks like this outfit does training nationally, so for anyone interested here is the link:

http://www.esc.org/step_national_schedule.php

The endorsement is only for 3 wheeled vehicles, but she passed the 3 day class with flying colors. So for anyone interesting in riding a Spyder but might be apprehensive due to the licensing issue this is a nice alternative.