A king cobra stitch is a cobra stitch tied over another cobra stitch. Tie another cobra stich around the cobra stitch, but try to make the coeds that run behind the stitch line up between the bumps of the cobra stitch below it. I know this sounds complicated, but just follow the pictures. Tie until you have no more bumps to tie between, then turn around and tie another one over it. This allows you to hold a large amount of cord in a small(ish) space.