Speaking personally, I’ve never worried nor had consistent issues about down shifting around in my “above freezing” sleeping bags & quilts. If it shifts around, I have simply re-fluffed it. I’m bummed to hear that the OP is having this issue, especially with the 950fp down. Regardless, winter bags are a different story to me. Too much is at risk to have the down to move around a lot – period.
A long time ago, some well-known mummy bag manufacturers actually sold certain sleeping bags without any sewn-in side baffle blocks between the top and bottom of the bag. This meant that one could shift all the down in the horizontal baffles from the top of the bag to the bottom if they wanted to – on purpose. In theory, it meant a person could adjust it’s overall comfort, depending on how warm or cool the evening was. Having used one of those bags for many years, I knew right from the start how to properly use it, and only had very few issues with cold spots which was always reconcilable. However, I could easily see many folks walking out of a store and never being educated about that feature, thus resulting in multiple returns. Don’t know if mummy bags have ever been made that way since then.
Now granted, the down back then never had a fill power greater than 650, and as the OP had inferred, this might have played into its ease of keeping the down properly shifted. But nowadays, I haven’t experienced down shifting to be too big a deal on my Enigma. Just like my comforter at home, I just fluff it up before every use.
John, if you are concerned enough to not purchase one, I’d just send EE a note to get more info directly from them, before abandoning the EE quilts as a possible contender. I’d just hope they’d be honest with you about any QC issues or returns. My own direct correspondence with them has always been great.
