Those other packs are good too.. I am not saying they are not. But there is a difference in a Hiker and a Hunter. We treat stuff differently, we have different needs, different expectations. Just a fact. The elbers, kifaru, Kuius, are used and abused by lots of people. I personally have chosen a Kifaru pack. Why? Because during my research had the opportunity to look at a lot side by side. And I know for a fact that the small group of people that design those packs also use them and abuse them on a VERY regular basis and make improvements on what they find and what the users/customers say.. Other vendors do this too... so not trying to slight anyone.
So that is the difference in the Hunting specific packs and the general hiking pack.. functionality response to a specific market.. Will the general packs work.. YES... Will the highend hunting packs work better? YES...... So you just have to decide what you want.