That progression is about what I would expect given that the McHale is a full custom pack, while Kifaru mentions ...customizing... on their current site and the 2005ish catalgue of theirs which I recently threw out, mentioned ...custom made..., IIRC.
Mystery Ranch, is a basic design, intended to fit a wide range of people quite well and it does just that, however, it is not "custom" and that does make a difference, IME.
I think it probably a good time to mention that, while McHale's are certainly the "cutting edge" of packs currently available. this does come at a cost which may be beyond the means of many who wish to backpack hunt. As great as Dan's packs are, they are not for everyone and there are alternatives at far less cost with which one can hunt in reasonable comfort and which are reliable.
I really enjoy seeing the different photos of McHale's here and hope that more will join in and let us see their packs from Dan.
