How about a twin Ringmaster? Johnny Mac (McCollum) from the Brotherhood is the designer/basher/builder here.He used 1 S1 wing with extended center section. Flys really well! I flew it on its second flight, and when those MVS.15 leaned out, this design turned into a screaming beast! Pulled like a horse.Ask Pat Johnston! I was sadly mistakened about how this project actually turned out! And it really doesn't get any simpler to build!