hey guys, what packs are built for us bigger guys. I have a Kuiu 1850 and when I pack it and walk a day with it on, I get really sore on my shoulders close to my neck. I have tried to adjust it but still seems to do the same thing, I'm thinking its made to narrow for me. I let me son use it a couple times and it didn't bother him but he is a lot smaller than I am. Was curious if i'm missing something on the adjustment of this pack or if other companies make bigger packs. hate to spend another 3-400 on another pack and have the same problem. Thanks