Originally Posted by
SparkyGA
...I find that I get way too much (frozen) condensation if I don't leave a one side of the rain fly out during the night....
It hasn't happened to me, but a friend had his tent's fly zipper freeze shut and he couldn't get out to pee in the morning until the sun hit. He said if the tent didn't cost over $500 he would have knifed it.
Back on topic, my 24 oz single-wall silnylon Tarptent has seen plenty of hail along with some wet early- and late-season snow. I wouldn't carry the extra pounds all summer for one or two possible nights of adverse weather in spring or fall.
And there's always the possibility of shipping yourself different gear later in the season if it's a real concern.