For guys wanting to try the 1850, the full kit is available in their outlet right now for under $300, which is what the frame and suspension normally sells for without a bag. I’ve been hiking with mine this week with between 30 and 60 lbs in it and really like it so far.
One thing to keep in mind is that it is a lightweight pack designed for guys who want to carry the lightest weight possible. Not just what the pack weighs, but choosing lightweight gear to put in it as well. If you carry 50 lbs in it while hunting, then add a 70 lb elk ham, you might not be happy. If you carry 20 lbs in it and carry out a 50 lb shoulder out first, then come back without all your gear for the heavier loads, I’m sure it will be much more comfortable.
I don’t want to carry a 120 lb pack at 10,000 feet anyways. I also expect to spend far more time hunting than packing meat, so I’d rather it suck a little more at the end than the whole trip.
I have seen others experience the plastic T fitting on the straps being a weak point, if the pack is laying on its back and you pick it up by a strap, the plastic T bears the full weight of the pack pulling on it. There is a nylon webbing handle attached to the top of the frame, if you lift the pack by that instead and keep tension on the load lifter straps, the plastic T’s shouldn’t see a whole lot of force.