The knots I used were an Evenk figure 8 & a taut hitch. Both work extremely well for both setup & takedown, and are simple to learn (well, for an ADULT to learn. Apparently, teens have some kind of learning block
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). However, he was using some cheap slippery cordage that you find at walmart. These will work themselves loose, as they are slippery. To avoid that, we simply put a stick in the release loop, to keep it from releasing. The knots were shown on a video someone posted here a while back (I couldnt find the link, sorry) as well as can be found
here.
They are simple, effective, and, timing myself today, I got the ridgeline up on my poncho in under a minute. It took mer longer to find some quick stakes for the 4 supporting lines than it did to set up! Although, it was fairly easy to push them into the snow. Glad this wasnt for real...it would have been a PITA to hammer something into frozen ground. Of course, at that point, I would have resorted to tying the corners off to boulders.