I know I'm resurrecting an old thread here, but I own this pack and thought I could comment since this discussion didn't have legs.
This is a very robust pack system that was well thought out for guys who hunt in the west/southwest. It is designed and sold by a local shop in phx. This shop is operated by serious DIY hunters and I have always been treated well when dealing with them.
The pack bag is attached to an external lightweight carbon fiber frame. It's capable of carrying serious weight. And the bag itself can be removed and used as a meat pack only. They told me they had fit a whole moose quarter on it and I believe them. The downside to the pack is that it is heavier than your kuiu, kifaru, stone glacier. It has held up very well here in the desert for the last 3 hunting seasons and I think it will last many more. It's adjustable to fit guys of different torso lengths( I had some trouble getting it to fit me right ) but once I did, I was very happy with it. It's got a built in shooting notch.. Which is handy if your bipod is too short or you need to get above the grass. It does not have the padding in the belt and torso region like an eberlestock but it's still is comfortable if dawned properly. The belt was well designed to easily accommodate holsters, range finders, knives, etc. they also have a couple accessory pods to expand its storage past it's standard approx 4600 cubic inches., and they now make a slightly larger version. They also make a lightweight rain cover for it, which is a must. I had it on a fall az antelope hunt last year and was rained on almost every day. The pack is water resistant but your stuff can get wet in a downpour