My friend just came back from Paris and got me a St. Louis PM black with black handles! My problem is that the shoulder straps are quite tight on me...I'm 5'10" with small build. Do I keep or try to get the GM size instead? I don't want my friend to be upset with wanting to return it to her...btw, she is also a reseller. Do I bite the bullet and just keep it or do I return it to her? Please help!!!