Six Moon Designs Fusion 50L Backpack

I wanted to share my thoughts on the SMD Fusion pack. This line of packs are fairly new to the scene (2 years), and this pack I'm reviewing is the second generation. The Fusion comes in a 50 and 65 liter pack. I can't say enough about how wonderful this backpack rides on the body.
Update for 2020: I am now using this pack exclusively. After trying several packs after this, I kept coming back to the Fusion.