I've been pestering y'all for the better part of a year now with questions about hammocks. I've got two more, both precipitated by the sale at Jacks r' Better right now on all their stuff.

1) Do you get too hot sleeping in the summer with an underquilt that's rated for winter camping? I'm a very warm sleeper, if that matters. 2) Can I use the underquilt as a down blanket for non-hammock trips (don't see why I couldn't...)? I travel with a few different folks, some of whom don't have down (or even synthetic) bags, and it'd be nice if I could loan them my bag and just sleep under the underquilt, considering I use my sleeping bag as a blanknet 90% of the time anyways. 3) Any thoughts about torso-length vs. full-length? I'm pretty new to this, so take that into consideration when giving your advice.

I've never had a problem with being too hot, I just loosen the suspension and lose the topquilt if need be. I'm a warm sleeper but even I find that it needs to be very warm for me to not want any bottom insulation at all.

If when your going is suppose to be warm, don't even bring the under quilt. The nyou save on space and weight.

I suppose that's an option. I've read that people get surprisingly cold in fairly warm weather, though, and I'll probably bring one just to be safe. I usually don't worry *too* much about space and weight on my BWCA trips. :)

I learned that lesson last summer. I'm a warm sleeper too, didn't use any under insulation the first night. Got pretty cold. Got up and rolled out a yoga mat. Very thin but made all difference. Slept comfortably after that.

1) Do you get too hot sleeping in the summer with an underquilt that's rated for winter camping? I'm a very warm sleeper, if that matters.
You can vent the UQ, or even slide it off to one side if you get too hot. Later, when you feel too cool, you just slip the UQ back under you.

2) Can I use the underquilt as a down blanket for non-hammock trips (don't see why I couldn't...)? I travel with a few different folks, some of whom don't have down (or even synthetic) bags, and it'd be nice if I could loan them my bag and just sleep under the underquilt, considering I use my sleeping bag as a blanknet 90% of the time anyways.
Yes, absolutely. A full length UQ is better for this. I actually have used my down UQ in my bed when SWMBO steals the blankets.

3) Any thoughts about torso-length vs. full-length?
I prefer full length because I think it gives you more options. My feet get cold and having the calves and feet inside the down helps a lot.

A few years ago in July I did get hot inside the hammock. Full sun all day and an underquilt made for a uncomfortable night. I second the yoga mat.

i'm a warm sleeper, tripped the last week of june and first week of august without any underquilt. i use a 40 degree sleeping bag inside and sleep either on top of it or inside it depending on temps. first night i felt hot going to bed - 80 something to start, 50 something at night. what i did and highly recommend, try it in the back yard for a couple nights first to figure out what works for you. sure the neighbors think you are weird at first, but it's easier to learn at home than in the woods :)