I read your page about recommended daypacks. You mentioned about SLR lenses so it seems you share a similar interest. What's your thought about Black Diamond packs? Some people seem to love 'em but you didn't mention in your reply or in your page.
The closest REI is 3 hr drive away from me. There's a Dick's Sporting Goods but they may not have the packs I wanna try in stock. I need to buy to try hence the long comparison.