yes, i'm starting another bag thread. here's why:

I have a chrome citizen, which I love. It's a great bag for general stuff, like commuting and getting around town. That said, theres a non negligible amount of times that I need to carry larger or odd sized loads, be it more groceries, laundry or beer that i can cram in the chrome. I'm looking to get a very large bag.

tentatively, I'm considering the PAC designs Ultimate OS and the Reload Backpack. I favor the PAC because of the X-Strap that i can use for heavier loads, while still having a shoulder bag for lighter loads. That said, it's pretty damn expensive. However I wonder if the the colossal Reload Backpack might be more comfortable.

I would really appreciate input from those of you who rock really large bags. I'm by no means ruling out offerings from other manufacturers - although I have my doubts about the Chrome Kremlin's viability

The main things i'm concerned about are:
1) comfort
2) stability while riding
3) ease of putting on and securing with a heavy load