Bumping this thread because after soon one year using an FS exodus i totaly agree with a few points :
-if i overstuff my backpack ( like when i use my winter sleeping bag ) the backs starts to take a more rounded shape.
i can reduce this effect a little using the 2 volume reducing loops at the bottom ( not reducing at the fullest it would be counterproductive, but i add a small loop of shockcord between )
- the weakest link ( for me ) is now by far the belt,
btw is it effective to have the belt starting at the sides of the backpack ?
if i compare to my (heavy ) but most comfortable carrying belt
on my old osprey stratos 32, the belt starts closer to the middle of the bottom of the back panel.