Can anyone explain exactly how do you define if a woman is hb9 or hb 10, or hb another? I thought that you use the rating to express how attractive the female is to you: 10 - most attractive. But I think I missed the point. I read on some thread that there is significant diffrence between hb8 and hb 9 - i their behaviour. The rating I give is relative to my taste, but when you talk about significant diffrences between hb8 and 9 I think there is some kind of non-relative scale. I know that this text is full of grammar errors, I'm not native english-speaker, but I hope you understand what do I mean