I've been lookin for a new solo/two person tent recently. Trying to get some real thoughts on silnylon. I am worried about sagging and condensation. It seems to be an issue, but everyone just Deals with it? Why doesn't anyone use polyester coated with silicone, just weight? I would personally rather carry 2 extra pounds and be dry. I'd like to hear from some people who have actually used/tested silnylon tents. One walled/two walled?