The idea of beginner clinics is maybe better than a full-blown class IMO. You take the pressure out of the scenario by eliminating the 'contest' and just make it an informative, extended coaching session. You get accomplished people to spend a couple days going over people's airplanes, answering questions, and offering technique improvements. Then having people flying in front of those coaches with no pressure to score well or compete for trophies, and give them additional coaching on how to improve and progress.