Originally Posted by
SilvrSurfr
As far as temps go, I use a 10* F cushion. If the overnight low is 30* F, I'll take the 20* Phoenix. If the overnight low is 20* F, the 0* Incubator comes along, and if the overnight low is 50* F or higher, then I take the 40* Phoenix.
A 40* Phoenix weighs 11.37 ounces, whereas a 0* Incubator weighs 26.4 ounces. If daytime highs are in the 90s, the last thing I want to carry is an extra pound of under-insulation. Here in New Jersey, I use my 20* Phoenix and Burrow most of the time, because that's what the temps dictate. However, if I can get away with less insulation, I certainly will, and if I need more, I have that too.
This weekend I went out to the NJ Pine Barrens, a place that's notorious for rapidly dropping temperatures because the sandy soil just doesn't hold moisture well, doesn't hold heat well, and is isolated enough that there are no weather stations that can give an accurate reading. The Weather Channel told me I could expect overnight lows of 29* F or so, but I knew exactly what that meant: temps could be colder. Luckily, I brought my 0* quilts, because it hit 23* F, and I'd rather not use a 20* Phoenix and Burrow in those temps.
Also, since I'm a 56-year-old hiker (with a rebuilt left knee), I'd rather keep my pack weight down to a minimum. It is truly thrilling to me that I can now hike up to 22 miles in a day because I'm not carrying a bunch of insulation I don't need. Six years ago, I had a 60 lb. pack and couldn't hike more than 8 miles in a day (and it would take several days to recover). It makes a big difference.
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