Hello all, been lurking for a while finally caved and joined.
I've been researching this topic for about a month now, and well, I'm coming up dry for answers on some of the routes I've been looking and seem to be starting to run in circles with my research in general. I figured now would be the time to stop and ask some people who would know a ton more than I.
I recently bought a Zpacks hexamid (which I think may work for my situation) as a SUL solution for 3 season camping because it looked like such a good deal for its weight and seemed to be an easy way to break my wife into tarp shelters during normal 3 season use. A few days ago I pitched it in my front yard and took a nap in it while it was around the low 40s with winds gusting up to about 30mph (pitched easy and seemed to hold up fine to the winds) and my wife's response after looking at it was "this tent is gonna be cold". We have two bivys (ti goat ptarmigan and MLD superlight I got for christmas) and two rather accurately rated down 30 degree sleep systems (Montbell UL SS DH #3, TR alpine down blanket) and high R value mats (TR neoair all-season and a Klymit inertia X-lite with GG 1/4" underpad) with plenty of layering support (we've used these down to their rating before and were too hot in them so I'm not concerned about them too much). However, snow and high winter humidity is something new to me, while it gets plenty cold where I'm used to camping (central Texas) its amazing if we get much more than an inch or two of snow all year.
I've moved up to Eastern VA recently and now that I have some free time I want to get out and do some trips, unfortunately for me its winter... I've got some routes planned like the Mt. Rogers/Grayson Highlands loop, and the Va Triple Crown loop, but my concern is that in Jan my shelter may not be enough. I'm looking at weather reports with lows down to the low 20s but highs into the 60s and all with a high humidity index, so not sure if a single walled tent is the best way to go even though its the lightest. I'm also not sure if I can just utilize my hexamid with a bivy and good layering or if it would be worth getting something more suited to winter use.
If you guys think I should shy away from the hexamid here is where I'm at in my research
able to take decent but not extreme snow loads (I may end up using this for more severe winter use later)
Able to take winds up to 50mph with proper pitching
Fits 2 people without too much contact with the walls
What I've been looking at
GoLite Shangri-la 2 (cheapest option I have found that is worth the price)
Brooks-Range Invasion (can't find much info on this, I'm sure its because its new)
Hilleberg Nallo (more than I would like to spend but seems to be a great all around tent that I can use for just about anything)
TT Scarp 2 (it seems the 1 may be large enough to fit my needs)
I'd be interested to hear any input you guys have on these matters, and thanks for the help in advance.