I have an REI Quarter Dome Plus T2 tent that weighs 5+ pounds. Really trying to get my weight down and in search of a lighter tent. Prefer a two person, as I like the extra room, plus room for my spouse when together. I have looked at the Fly Creek, Copper Spur and Zpacks Duplex. Leaning toward the Duplex, but concerned about condensation and winter use. Anyone have experiences with these or sub two pound two person tents?