After much deliberation I finally decided on purchasing a WBBB; though I'm having trouble figuring which to go with. I am 6'2" 245lbs so I fall just between the max flatness ranges. I'm going with either the Blackbird Double Layer 1.1oz or the 1.7oz. Which would likely provide the most comfort for a guy my size? I'm currently leaning towards the 1.1 simple to save myself the 9oz~ of pack weight. Any input would be of great help