Blick, do your straps buckle in a way like the chrome bags do? you know, so you can take it off and on without having to pull it over your head?
It doesn't have to be a seat buckle.
My problem with messenger bags is this: I like to wear it close to my body, this way there is less stress on my shoulder, but this also means the strap and bag does not leave a lot of wiggle room, which is great when I am on the road (especially with the cross strap), but when ever I am taking it on and off, it is a pain.
So my next back is a MUST for some sort of strap buckle.