Functionally I believe I'm at where you are. You day hunt, carry minimal gear and need a pack that compresses down enough to fit in an airline overhead.
My solution for the last 10 or so years has been the Seek Outside Evolution. It is lightweight, compresses down to nothing, but hauls heavy loads comfortably like a mofo. Between my son needing packs as he's grown and my desire to find the better mousetrap, I've had detours with the MR Pintler, MR Popup, Kifaru Stryker on a Bikini Frame and a few others. And each time I come back to the Evolution. It just rides better, compresses down smaller and carries a heavy load better than anything else I've tried.
My Evolution has fit nicely in an overhead, but since I fly single engines most a lot now, it most oten rides on my lap. After chasing cheaper options for my son, he's now ended up with a Revolution of his own purchased used but like new right here on the fire.
