I tested my system last night and had a little trouble staying warm.
It was 20*. My top quilt did well; I almost did not notice the cold. The problem was my under quilt. There was a 20 MPH wind with gust to 40 MPH. I was OK with the steady winds they were not the problem. No matter how tight I made the suspension. Every time there was a 40 MPH wind gust, instant cold underneath. One gust even took the under quilt completely off. Any ideas on how to fix this problem.