Hey David.
I live in NC as well and I fell all the way down the tent rabbit hole over the last ten years.
I spend most of my hiking time here in the Appalachians, but do travel hikes domestic or internationally a few times a year.
We have some challenges to our region, mostly heat and humidity related. I’ve used several tarps, Big Agnes Fly Creek & Copper Spur, Zpacks Duplex, LightHeart Gear Solong, Tarptent Rainbow, Mountain Laurel Designs Solomid DCF & Duomid DCF, and more recently Hyperlite Mountain Gear Ultamid 2.
My MLD Duomid is my security blanket, and is the only one I trust when the conditions are prone to change rapidly. Most of the others belong to new owners now.
I’m a hybrid trekking pole user. Meaning that most of the time my trekking poles are bound, on my pack, and accessible when I need them, but usually I’m hands free. I really only use them for severe changes in slope or wet conditions. I mention this because the “weight savings” of using a trekking pole tent doesn’t really apply to my hiking style, since I’m mostly carrying an additional pound of trekking pole weight on my back.
You can get away with almost any 3 season tent here for all four seasons. We do not have the same concerns with snow as the Rockies and the elevation change isn’t severe (highest point is 6700ft). I do say that tongue in check, I think the Smokies are projected to be hit with a foot of snow tonight.
For me a pyramid tent checks the majority of boxes for a winter solo shelter. I’d recommend the MLD duomid, of course. You can choose nylon or DCF based on your budget, realistic usage, and preference. Its modular, so you can add an inner for the warmer months to keep the deer ticks and hummingbird sized (not really) mosquitos at bay or just a ground sheet for cooler temperatures.
Feel free to shoot me a PM with any questions you might have.