Great video. I do the reverse of your set up. I have the continuous loop prusik larksheaded on the tarp and the fixed loop goes to the stake. This allows adjustment from under the tarp which is handy in wet weather. Also it allows the guyline to be adjusted very short (as short as 4 inches on my guylines) if I want the tarp to be very close to the ground.
That's a great idea Bubba! Will setup my new tarp that way.