Hypothetical BPL Down testing – sample sizes, tester, etc???

Read the literature on the idfl website about down testing

Just how the down was transported and how much it was shaken out can have up to a ~40% variability in the tests

And this is in a lab setting … With home rigs repeatable results may be elusive

Which is one reason im quite skeptical of the benefits of very high fill powered down in real world conditions … The environment and how you treat the down has a huge impact on its "warmth"

As anyone who has "warmed up" their down sleeping bag with a nalgene … Or hasnt shaken out their down sleeping bag prior to getting into it has found

;)

Oh, I wasn't thinking of comparing fill weights…more compare suppliers fill weights and dwr treatments. Take some 850 HyperDry, 850 Downtek, 850 whatever and compare them. Granted one would have to assume 850 is 850…maybe it's too much of a challenge