I just returned from a 2 night backpacking trip. Just like my test, the Shamu performed beautifully. Once I got the hang of it by practicing in my backyard before the trip, hanging the UQ was super simple and fit snugly
On Sat. night, temps got down into the high 20's and we had a snow storm with a TON of wind. Woke up to about 3 inches of snow on the ground.
Still slept very warm with the UQ and my 25 degree bag. Once again, I was very pleased with the shamu. It actually exceeded my expectations in terms of it's warmth.