I was hoping to get some feedback on the Sitka Bivy 30 pack. How's the fit? How does it handle a heavy load? Good pocket arrangement/layout?

Currently I have a Badlands Sacrifice and think it's a great pack, except for the waist belt cannot go tight enough. I am 6'2" and 180lbs, which seems odd. Regardless, the amount of backpacking I do means that a pack that doesn't fit properly has no room on my shoulders. Thanks for your help!