My current rig:
Eberlestock F1, with roll top dry bag from kifaru, add a gun bearer and you have a very light and versatile system.
You're right about the critique on the shoulder straps. But those can be replaced.
mainframe pack weighs 4 lb 5 oz, roll top dry (55L) bag is 6.2 oz, gun bearer is 4.2 oz
All in you have a set up that is 5 pounds, before you put stuff in it.
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The bull pac starts at 5 lb 7oz, definitely heavier.
I have tried several packs, including the basic kelty cache hauler/ freighter pack. That one weighs 6 lb 1 oz.
If money is not a consideration then buy yourself a kifaru platform, add a cargo panel or cargo net...and you won't be disappointed.
I tried on a Tenzing CF13, and loaded it with weight....did not feel like a winner especially with $840 price tag.
No clue about Kuiu, have heard from hunting buddies both good and bad. Bad was fit, good was strength for weight.
