I applaud your incredible work!! The basic problem w the ALICE ruck is the design restrictions ie soldier must be able to raise his helmeted head in prone position while wearing this ruck and the ruck must be capable of carrying so much load.The ruck was never properly designed to shift load up and down the torso but rather it shifted it perpendicular to the back. The design would then never transfer the load to the hips, the ALICE would always pull you back. In short, it would drive you into the ground like a tent stake. It was brutal to carry with a combat load. Consider looking at some of the Infantry sites to see what they prefer. They carry a ruck all the time & try to survive & fight....an Old Soldier