Since I owned and used the model bag pictured by the OT and reviewed by Charles I want to comment on the assertion that;
"I don't think a down sleeping bag could that lumpy unless you wanted it too look that way."
Dan, you are correct insofar as the bag has not been “primed” for use… however, it is incorrect that the bag could not look that lumpy without some intention on the reviewers part.
To explain, let me answer the OT's question; “WHY would someone build a bag like that?”
My original Alpinist was a 24 ounce bag made from Pertex Microlight, 800 fill down, no zipper, very wide baffle spacing, and a very narrow cut from the waist down- it was designed to be the closest thing you could have to just draping down over you.
When initially taken from its stuff sack, it looked exactly as that picture shows; lumpy. It required a bit of fluffing and shaking to allow for full loft. Even then, the 2.5 inch baffle height combined with, if I recall correctly, 12 ounces of down and 9-12 inch baffle spacing, did lead to underfilled areas. If I shifted ALL of the down to the top and did not move around in my sleep, it truly was warm to its rating. If not, you could very well have large areas devoid of any fill.
That said, the bag was well made and even held up to one very memorable night when it held two people… cozy.
I do not know the minds of Nunatak’s designers, but I assume that the original Alpinist simply required too much in the way of user interaction to be a viable commercial product. It was however a well thought out, purpose built product, even if one that was entirely too finicky to for most users. I sold mine and now use a Marmot Helium and WM Antelope.