Not sure about that particular model, but for backpack hunting all of the Teton models I saw at SW seemed pretty heavy. I have a relatively inexpensive Coleman Emmons 0* bag I've been using - pretty heavy and bulky compared to the top end stuff, but it's kept me warm and seems pretty durable if you're on a tight budget. Honestly, it hasn't been high on my "upgrade" list because it plain works!
I think I'll be upgrading to a Kifaru Slick Bag in the next season or 2 - much lighter and more compact in the same temp rating, more durable too.
I'm a synthetic-only type of guy, but if you're interested in down bags Sierra Trading Post usually has some good deals on warm and lightweight bags as well.
