Just to tempt you: have you considered switching to the 66" NeoAir All-Season? It weighs a couple of ounces more than the 72" original, but I find that 66" is effectively full length for 5'10" me, since my head isn't on the pad. Also, it's plenty warm (at 20 degrees, I still felt heat radiating back up to me), so you could arguably do without the CCF backup pad, which would offset the extra weight.

Your eyes are starting to glaze over, and you're starting to salivate, aren't you? smile