I made this today from that dwr or whatever you call it that I got from the $1 bin in Wal Mart. It was a easy as making a rectangle slightly larger than the Speer Snugfit Quilt, about 12 inches wider and longer. Hem the edges and put in draw cords and loop attachment loops on each end. Attach the basic JRB type support as if it was a quilt and tighten the ends. add velcro identical to the Speer Snugfit. Velcro had already been added to the Claytor to match the Speer model Snugfit.
Crawl in and close the velcro as far as you like. The velcro is for closing, not for attaching to the hammock or Snugfit.
Making this stuff is a blast. Mule