My BlackCat tarp doesn't have a ridgeline. It ties right up to the trees. I've been using the niteize figure 9's so that I can adjust easily if necessary. Also it's a cat cut tarp, which is more stable (less flappy) than a rectangular tarp in the wind.
I did enjoy watching his use of knots, but I thought that some of that setup was more complicated than it needed to be. (The ridgeline, for instance). But whatever floats your boat, y'know?
"Civilization is the limitless multiplication of unnecessary necessities." - Mark Twain
“I go to nature to be soothed and healed, and to have my senses put in order.” - John Burroughs