Looks great Mic,
I'm wondering how and where you've attached it to the hammock, it looks like it fits perfectly. I'm guessing that you used 'shock cord' from each of the UQ's corners but I can't see where it goes to the hammock from your pics, does it loop around the hammock suspension near the gathered ends? Any trouble with it trying to slide up either side of the hammock when you move around inside and leaving the other side or the bottom exposed? I've heard of other people having that problem and mine was doing it to start with but I managed to fix it by tying a loop in the UQ suspension where it attaches to the hammock, works a treat.
I like the camo material, very cool, it definitely goes with your stealth tarp

No doubt they will go to zero, I've been to 5 comfortably and plan on a trip out west next year when it cools down and see how it goes a bit lower