Had the opportunity to test out my just finished 8x7ish flat tarp. I made his out of Lawson's .74oz banana cuben.
Hysol is much more difficult to work with than I anticipated. If you have a nice big well-light and well-ventilated space to set out a massive jig then it'd be fine, but I do not and it was a struggle. So the construction was a bit sloppy, but it turned out fine and seemed to weather the probably 20 mph gusts last night.
Also got to test the John West/Borah Gear bivy, older Golite quilt and ridgerest combo down to the mid-20s at the City of Rock, Idaho.
Not sure what to call this pitch but I've used it a couple times now and it's solid. Obviously, pitch the low end into the wind. If the tarp has a mid-panel tieout all the better to pull it away from your feet.