Yep. That's it. I thing the Turks's Head is the same as a crown knot and then I make a wall around it, threading the strands back through the X's to come out the middle. Seems like I was having trouble with the last strand, getting it threaded back through the correct way. But that's seems to be going better for me now. Probably a bit of practice helps . I'll attach a photo of the knot I am using. I would love to have your diagram. it always helps to see it on paper. Let me know more about your planned project and I can send you photos of the leashes I have done.