I've got the UL spiral down hugger #3 and it is awesome for all around use as it has the 3/4 zip and I use it much as a topquilt in the hammock. I find that if it is really cold out, I seem to get a little bit warmer taking it from topquilt mode, to zipping right up in it, and cinching down the hood. It is made out of really nice material, and stuffs down to close to the same size as my underquilt. I move around alot when I sleep on the ground, and having the option to zip in is good.
That being said, as I lean more and more to hammocking only, I would really like to get a HG Burrow to match my Phoenix. No matter which you choose, they are both really nice, and I don't think you can go wrong with either.
Cheers
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