"Possibly to prevent post purchase dissonance."
My twin is rapidly approaching its 1 year birthday. I had to break the news to it that no Chuck E Cheese birthday party until I see how it does in a wind storm. If I see a windstorm in the forecast, I'd probably play it safe and bring my mid. On the chance I get caught up in a windstorm that wasn't in the forecast, my general plan is to stake the tarp to the ground and hold onto my @$$ for dear life. It may do well but as of now, its untested for me. I have the twin groundsheet which I can roll up in as a bivy in a pinch.
In a situation of very high humidity, low temperatures, persistent rain, and the beak lowered, I found condensation was heavy. The spray from the energy transfer from the raindrop to the condensation created a misting effect but I would just occasionally wipe down the inside with my towel. My sleeping bag didn't get pelted with too much mist and the DWR made that a non-issue. Had I not been sharing the Twin with my daughter, I would have just left the beak up and moved towards the back.
I do recommend going with a twin or duplex. The few extra ozs are well spent for the extra room.