At first I was thinking about doing an under quilt with cuben fiber on one side and uncoated sil nylon on the other. I shown that this may cause problems with condensation.
So I have decided to cut strips of sil-nylon and strips of cuben, then sew one strip cuben and one sil-nylon. Alternating one then the other. Then use the two panals to do the quilt. Then eash baffle will have cuben fiber on one side then sil-nylon on the other side. I belive this will salve the breathability issue.
In the end I will have a 20*, full leanghm quilt,72 in X 45 in 2.5 in baffles, that should still come in under 16 oz's.
Anyone see a problem doing it this way.