My pack is 17 or 18 years old and now I'm that much more older then I used to be. It's a Kelty External. I decided to replace it with a new pack because of a comfort issue. Nothing is working for me so far. I tried a Nimbus Ozone internal, and a Kelty Super Tioga external. Both packs wanted to pull the load away from my back. It was as if there were a piano hinge at the bottom of the pack attached to my lower waist, and then the pack would tip back and pull off of my shoulders. I tried moving the heavy stuff (10 pound bear canister, four pound tent, 100 ounce water bladder)to the top near my back, then I put it in the middle close to my back, then I spread it out, and then I removed the heavy stuff completely. I must be doing something wrong. My old Kelty does'nt pull away like these new ones do. I ordered these online with REI, and thankfully they are great people but, it is starting to get very frustrating and expensive paying the shipping! I have another on the way and if it does not work I really don't know what to do. The one on the way is a Gregory Forester. Any suggestions before it gets here? Thanks.