I’ve owned about every brand pack on the planet over the years. It’s honestly become an obsession with packs and gear. This year I decided to try an Exo. When I received the 3500, I immediately loved the layout and pocket configuration. I really like how easily the frame separated from the pack to go into meat haul mode. I hiked around the neighborhood with 80 pounds and it felt great. When packing out my elk this fall, the Exo never shifted or barreled at all. I didn’t have to adjust or re-tighten the waist belt, or shift the pack at all; it was like it was glued to my lumbar area and hauled the 90lb loads like a dream. Thanks for building such a great a great pack.