What ever happened to the One Design? When I was flying to OSH in the early '90s it was all the rage, although only the proto was built. Fast forward 20 years and I don't think there are too many out there. I did find a website that seems to have some activity, but it looks like it didn't really catch on. Maybe the fact that it is plans-built and you can pickup a nice used S-1S for $40K killed it.