Another bonus to having a bungie loop on the tarp corners is how easy it is to attach a pole.  Just a couple wraps of the bungie and you're done.

Not a fan of center poles either.  Much prefer to string it up on a line.

I hang a cord from the underside center point.  From there I can loop in/daisy chain all sorts of stuff.  Hanging gear out of the dirt, out of the way, dry & safe.

After the wind last year I can't get a completely taught rig anymore.  There are spots that are just streached out and saggy now.

Having had the wind switch 180 and blow rain into my shelter on that same trip, I'm more aware of the potential now.

db I love the use of prussics in your pictures.  Nice tarp sets.