Well, I just decided that I'm ruling out the Amos due to the weight.

And I decided, why buy a new Talon 44 - I will simply ship mine back to Osprey and eventually will get a patched up pack back for simply shipping costs! (I have it duct taped now, and and still nursing it through use!)

So, it's down the the Blaze, or Exos. And wouldn't you know it, I was going to order both packs just now from REI, and yup, the Blaze man said, "no Blaze for you today! I'm guessing it must sell out fast from them.

Now, I know I could order the Blaze from other sources, but I was nervous enough about returning packs locally in person at REI, shipping one back to another supplier is a huge headache. I bought a few tents this way "trying them out" a few years ago, and went through HELL!, and several months to get my promised refunds on returns. (unmentioned supplier, not REI)