This is why I said wait for the men because in MY case, I had to size up 2, which MOST women who got the SSK's did. I asked around and this was the advice that I got. I'm sorry LiLCram if I confused you. I figured every pair would be different. But this was just my experience and others as well. I'm sure other women could back me up on this.
Mannequin- In most my jeans I wear a size 26 so that is how I gaged this. Not sure why you are saying 28-29? I was that size 6 months ago but since then I have lost nearly 20 pounds...sooo...yeah.
Either way, LiLCram, I apologize and I hope you find your correct size and you like them!