I'll be section hiking the AT in 2015 and I'm trying to make a decision on the pack I'll be using. I had my mind made up on the Osprey Aether 60 which seems to be the choice of several AT hikers however, I see many people recommending the ULA packs. Both companies seem to be very customer service minded for concerns and repairs. I know the Ospery pack is over 1.5 lbs heavier but will it wear better or be more comfortable with the back panel? Any input is greatly appreciated!