John Gallagher asked about the Compact 110 and its resemblence to the Superfloater. I spent the $99 bucks for the Compact 110 construction notes and was underwhelmed. The drawings were essentially sketches and the construction techniques looked like they would require some significant structural testing before flight. To be sure, Bill Spencer makes no claim for the airworthiness of the proposed design.
Having seen and flown the Superfloater, I can tell you that it is a well thought out and constructed ship. The detail fittings and machined parts on it are truely superb. My only wish is that they would kit it, instead of selling only the full up glider. It is a sweet flying machine!