I made up a peanut butter consistent mixture of medium set epoxy/hardener with carbosil and chopped glass to set the stringer in. I then screwed the frames into the stringers and placed braces wedging the bottoms of the stringers into the hull. I also placed 5 gallon buckets of water on top of the stringers for weight pushing down. Because of the cap being in place I had to glass in the full frames before placing the stringers in.