So just got back from setting some cams with a buddy. He has an older summit and I have a SG x curve.
We had the cams, food, water and 44lbs of salt each.
Covered 7.6 miles, packs got lighter after each cam set.
We switched packs partway through so he could try the SG.
My suggestion is to buy a used top end pack before one of the badlands if carrying more than 40lbs in it.
But you can expect a pack that costs half or less to be as good at everything. Besides comfort with heavier weights it seems like a nice pack.