Hi Johann, Jim and Tim,
Thanks for taking the time to comment.
I lived in Dahlonega, GA for 11 years. During that time I was in the woods hiking or something, during every month of the year. I can tell you that it can get very cold at times in those mountains. I think the biggest snow I remember was in April one year. Four foot snow drifts in my driveway. Nice.
I define UL or SUL as it applies to the season I am hiking in. I apply this to each item I carry.
I like your comment "weight per value delivered rather than only weight".
Think about a 40 to 45 degree sleeping bag made out of Cuben and the 2 oz Combat or 2.5 ounce XP. Weight, about 7 to 8 ounces or less. That one is next on my list.
I haven't look at the OWFINC.com web site for Climashield Insulation in awhile. The last time I called them they had some Combat but weren't sure about getting new stock.
They may have sold out and went with what was easy to get.
I have on hand from them (bought as I now see looking at my invoice back in 2007-funny how time flies) 3 yards of Combat in the 4.7 ounce per sq yard weight. I will edit my comment about OWFINC.com to "has had in the past" and will call them on Monday.