Just got done with an 800-mile trip from Arches to the Grand Canyon and carried the Hooded Inferno the whole way. VERY glad to have it, especially since I was using the GoLite Ultra quilt and nights in the mid-teens were not uncommon.
GoLite hooked me up with two version of the Hooded Inferno. One for "civilian use," i.e. "you're not allowed to get this one stinky or to chop it up"; the other for "trail use," i.e. "you can do whatever you want to it and it can smell horrible, and that's okay."
I removed the fleece-lined pockets in my trail jacket and cut out the inside lining that seperates the pocket and the wearer (it's a third layer of fabric -- there's no down in there) and managed to get the weight down to 20.8 oz, size Men's Medium.