Welcome to the family :)
https://www.hammockforums.net/forum/...rquilt-arrived
I got this combo before the winter, tried several times, but only last days allowed me to test the limits. The suspension is quite simple, I dont see any reason to run the shockcord all the way along the uq. Or secondary suspension. I bought the dutch ridgeline quilt hooks so that the uq hugs the hammock better. Tried with prusiks on the ridgeline too, works as well. What I really like is the pertex endurance fabric, tried some moist and freeze, quilts covered with ice in the morning, dried fast on the sun :) The loft is amazing too.
The coldest I went to was -18. To -10 it was very warm inside with any clothes on me, just socks, and long sleeve warm t-shirt. It got to -18 in the night, i put my pyjama trousers on me. If I could sleep still and didnt move, could be OK in this temperature. Otherwise I would like to wear light down jacket or something like fleece jacket. For me the magic border is somewhere around -14 when everything inside is really warm. In -18, there were cold spots inside of the topquilt (still warm from underquilt) and I got cold on the foots in the place where they are touching the hammock footbox (compressed down). I also used the webbing loops on the sides to connect them with carabiners so that hugs me better and my warmth stays where it should. I survived, and had some sleep, but would wear something on me next time. However, those temperatures are rare here, so the comfort zone of -14 is pretty excellent.
And the guys in cumulus company... amazing.