Nice bag, but way too cold!
I love the sleep system concept. However, this is the second bag from BA that has not held it temp rating for me. I started to feel cold at 40 degrees. A rare 31 degree night just this last week in August sent me back to my truck looking for the Horse blanket to cover up in this bag. Nice material, great as far as roomy, but the temp ratings are at least 20 degrees higher in BA bags. I am a cold sleeper, but I had to put on sweats, under armour 1st layer and a fleece jacket before I was warm. Purchasing a storm King and going out this weekend to the same spot. We'll see how it goes.