Very interesting and nice video. But it was a little bit confusing to understand the way you have put the skewers though the signatures, in order to bind one to the other.
This link takes you to a video which shows the process far more clearly. I had the same issue as you. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-q5Iy9e-_yfE.html