RE: 1/2a c/l circle -- how big?
Well, BRUCE was just doing his duty, and trying to drum up some business for the C/L forum. If you want to see a very active C/L forum, try out STUKA STUNT! C/L might be a dying sport, but you couldn't tell by the amount of message traffic and interesting discussions that they have over there.
BTW, the STUNT NEWS should be currently available through PAMPA [an AMA SIG for C/L flyers]. This magazine is usually loaded with plans and great construction articles and building tips. Most of the advertising is done by folks who have top notch C/L related stuff to sell, so this mag has a wealth of links to custom gear, some of it applicable to what we do here.