Has anyone used this model? It carries a 2L (70oz.) bladder.
It appears to be big enough to hold small gear, but I'm afraid I'll want to pack more on some rides (longer ones) and feel like the pack part is too small to hold it all.

Suggestions? Should I just buy it and hope it works out???

(I originally fell in love with the Camelbak MULE, but rethought about it as it carries a 3L bladder, and after thinking about that, realized that was a bit too much water to carry around.)