Well, I still need to weigh it. The trip went well. It is in the trip reports titled "Notch Lake, Uintas Report". I would link to it, but have no idea how. Maybe a moderator can help. Anyways, some comments on the design. It definitely needed a vertical strap. The bag had a tendency to want to fall out of the three horizontal straps. The vertical strap prevented this, although not 100%. I think it shifted an inch down by the time we finished 2 miles. Also, I need to support the load lifters better. If you look, the top horizontal strap is lower than the load lifters, and they are bending the frame down. I think that if I raise the top horizontal strap to the very top, it would support the load lifters better. I don't think they are working in the present configuration. Their lack of function could explain his soreness at the end of the hike. In other words, the hip belt wasn't working and I have some adjusting to do.