Packs with nice high frame height may be a pain in the neck (quite literally) when you're trying to spot for game from prone, and can just generally be in the way when trying to bust brush - even if the pack is cinched down on the frame. The really nice thing about the Mystery Ranch Pop-Up pack is the frame is out of the way until it's time to pack out game. Additionally, the Pop-Up does not interfere with drawing a bow, fwiw.
