Those guys who have experience in extreme conditions need to chime in.
I have some limited experience in extremes but recent experience at the forum makes me prefer to pass on chiming in on anything.
One of the graces of backpacking is the individual nature of it, with each person using gear of his choice. The corollary of giving total freedom to anyone else to use whatever gear they choose has been a hallmark of this excellent forum. We learn from what others say they do, but never feel compelled to lockstep with anybody.
