Can you wear the medium flap messenger style?

I'm around this height, not busty either, and cannot wear the medium/large flap messenger style. I got mine in 2005 or 2006, so I have one of the "older" (stiffer caviar) ones.

I tried on the new black medium caviar (i think its the softer/washed caviar?) in the boutique 2 months ago. It didn't fit me quite right messenger style.. so I'm wondering if they shortened the straps on the newer classics? I'm 4'11" and no boobies (lol.. so nothing should get in the way =P).