I have a speedy b 25 in empreinte and have decided I now want to hunt down a SC bag in the PM size (or maybe BB size?) in noir. Does anyone have recommendations on which size to go with? I can't afford to buy this bag new so I have to find one pre-loved. Thanks in advance for any feedback from any of you who own either size! FYI, I'm about 5'3" and a size 8, so on the petite side, but not tiny.