hangs head sheepishly and looks at feet...

I AM an idiot!!! I figured out that the bag is made for righties (and I'm a lefty). When I took it off and put it on the "wrong" way- it fits like it's supposed to. Duh! It fits much better now (although it feels weird being over my left shoulder right now), so I'll give it a test ride tomorrow to see how it does when riding.

Thanks for all your help and suggestions. Thanks Lisa- now it sits on me like you said it should.

DUH! (hits self on forehead)