I recently got a pre-loved JPG shoulder B from Protero cos I like the look of the better than the new version. It came almost brand new and I now use it so much more than my 35 Birkin. I'm 164cm, slim, so I find the bag sits on my shoulder very nicely, and the bag hangs parallel to the floor, unlike how some ppl suggested to tilt it back. even though ppl complain about its weight, because it's carried on the shoulder I find it so much lighter than my 35cm B. It's also a lot more casual than the regular B, IMHO. Sometimes I use it as a gym bag 
