This weekend I had a chance to pair my new Yeti UQ with my War Bonnet hammock.
I took the hammock, Yeti and also cut a 36" piece of blue foam pad (from Wal-Mart) and took it too. It was a clear night, temps in the lower-mid 50's and relatively calm. Given these conditions i didn't bother pitching the tarp. I used my Mont Bell SS#7 (55*) down bag as a top quilt.
I had the hammmock up and underquilt attached in less than 5 minutes. I positioned the Yeti so that the upper end stopped at my neck and inserted the piece of foam pad from about my knees down.
When I climbed in the hammock the first thing I felt was the warmth from the Yeti. It was like having a little heater under my torso. Very nice! I also didn't have any cool spots under my legs which was nice.
I definitely give the Yeti 4 stars. I woke up a few times during the night and was not cold at all. I only had on a t-shirt and pair of shorts and I was very happy not to feel like I needed to wear long johns to keep the chill off.
Still trying to decide whether to tent or hammock on my upcoming long hike. I'm even toying with the idea of taking just the Blackbird (no tarp or UQ) and using it on warm summer nights and also taking my Lunar Solo tent when being in a tent would be better.