I've owned this ULA Camino II for awhile now and as much as I like it, it really isn't what I need, and what I need is a Catalyst (well, maybe a Z-packs arc blast but that's apples for oranges). The zippered front makes the bag more appropriate for using as a carry-on and for section hikes and the like, whereas I think the top loading nature of the Catalyst is better suited for the finishing off of the AT I have planned if all things fall into place. Would anyone out there with a like-new Catalyst be wiling to swap it out for my equally like new Camino II? I'd be more than happy to pay for the shipping on both bags. Oh, and to complicate matters.......mine is an extra small belt, small torso........I could handle a small belt, small torso. THANKS!