Jim -- Seeing that picture of the ram in your avatar shows me you know something about sheep hunting! Congratulations on that one. It's a beauty. Hopefully Mark can find that sort of success too. Did you post the story of your sheep somewhere? If so, could you point me to the post, and, if not, could you write something and tell us about your experience?
Mark -- I have an Eberlestock X2 pack also and really like it. I used it for my elk hunting last year, and the only complaint I had was that it started squeaking where the straps contacted the metal frame. Glen Eberle wraps friction tape around the portions of the frame where the straps are and has stopped the noise, so that problem is fixed. I recently bought the new Kuiu Icon pack frame and both the 3000 and 6000 packs that attach to it. I have a feeling I am really going to like the Kuiu frame and packs, especially in situations like yours where going uphill with substantial loads is required. There are some of the carrying options that Glen has designed that Jason has not yet started producing for the Kuiu packs, but I know Jason is working on them. Maybe the weather will get a little "worse" and drive the sheep to lower altitudes by the time you get back up there into the mountains. Please remind us where you are hunting -- I assume somewhere on the western slopes.
Allan