I have been 3 season hammocking for a few years with my Hennessy and JRB quilts. Great gear. But a bug bit me this year and I did a bit of research and scraped together as much funds as possible and decided to winter hammock this year at the hunt. Hammock gear 0* top and under quilts, WB superfly (the first poster had it right, this thing is HUGE and still light weight), then bought a WBBB XLC. I did not ask to be bumped in line for lack of my preparation. The XLC arrived the day I left... so I guess another outing soon is in the future. First night I stopped looking at the thermometer at 12*. It got COLD, yet I was nice and warm. I had to get out once since my feet got cold, upon investigating I found the foot end of the underquilt was not tight! I'm a dope sometime, fixed that up, and went to bed, slept till the watch went off. Each night the temps increased till day 5 it was 40 as the low. Needless to say 0* insulation and 40* does not work, ended up finishing the night with the 0* under quilt and the HPG serape as the top quilt. Still fine.
Here you can see the standard tarp that comes with the hennessy, it works, use it alot, but now that I am going a little extreme, I will be buying a cuben tarp that will weight about 5 oz. Talk about light weight!
Here are some from this last week out. Superfly weights about 19oz, add some for cordage, I used some reflective dynemma cord, lightweight and shows up well to lights as evident from the flash. The superfly is 11' long, 10' wide, and is 7'7" between the end tieouts/ doors. I also highly recommend it! Mine is the new camo pattern, I am a multicam junkie, but the MC superfly weights 3x as much due to material.
Storm mode
Pulled out area for more interior room
Porch mode
reflective cord a light drizzle, but no wind, so porch mode worked great to hang out under, sit in the hammock like a lounger and wait it out.