I've been hammocking for a few years and have a pretty good feel for various quilts/tarps that are needed in different seasons.
I did a quick overnighter yesterday (got back this morning) and carried kit for 30°F ( it got down to 27°F) and it all fit with GOBS of room to spare, so it would've been fine for a multi-day in similar conditions. It'd probably be okay for 20°F-rated TQ and UQ, but not 0°F kit and something like a HG Palace tarp. Plus you'd likely be carrying serious puffies and other bulkier winter gear. But there are probably some UL Zen Masters who could do it... but I ain't one of 'em.
In the pics below, pack contains 30deg EE Enigma TQ, 20deg Revolt (65"), DH Darien 10'/Robic 1.7, HG 11' Hex DCF, Montbell Alpine light hooded puffy, Marmot Precip pants, Zpacks poncho, Helinox chair zero (OK, flog me for UL blasphemy) alky stove setup, food and the other normal stuff. I don't know the base weight, but trailhead TPW was 13.8lb on my digital luggage scale including food and 20oz water.
My philosophy is to carry a pack large enough to contain all my stuff if at all possible. I absolutely abhor strapping a bunch of stuff to the outside just so I can say I'm carrying a smaller volume pack, with stuff clanging, jangling, scraping and snagging on rocks and vegetation.
The pack carried extremely well for me, and I intentionally collected my evening water a little earlier so I could carry it at a heavier weight for a couple of miles. With the 1.5 liter Evernew bladder adding another 3.3lb or so it totaled about 17lbs and was still a dream.
Too early to say yet, however I noticed that my back was practically dry where I usually have a very damp or wet area in the lumbar region, even though I am always very attentive when it comes to controlling overheating. Trampoline is good, but my first impression is that these curved stays are even better.
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