Wishful thinking...... that said, there was a guy on this site, many years ago, that had a displacement BBSB and he had a complete planning surface added to his hull. From midship to the stern, and squared off to the gunnels. I am guessing it was simply some 1x framing, covered with plywood. I don't think it was glassed, but may have been. His name was John, can't remember his last name. Maybe Gene Jr., Jode, or Mike Braden will remember. Started with an H? Maybe from Delaware? or PA? It was the day we all hunted together.