True, they get 100 to my 10-20 per day, but most of the women I've spoken to tend to do the same thing...they scan over the thumbnails and delete all the guys they're not attracted to without even looking at their profile or reading their mails, leaving just a handful of guys left.
Some women I dated have shown me their messages and most of those are just "hi", blatant copy & paste jobs or just absolutely retarded. Some guys write these girls poems, quote lyrics to a song or say something ridiculously corny, others write messages like "I'd love to smash your backdoors in" or something equally tasteless.
I seriously couldn't believe how socially stunted most of the guys on there are, but it basically means of the 100 messages per day, only a few are legitimate options. And almost every woman I've ever spoken to on there say they've been on dates to find the guys have lied about themselves (usually their height).
They key to success is to separate yourself from the crowd.
Maybe things are different in the UK. I tend to search the midlands area, though I get a lot of messages from all around the country.
As for HB9s, obviously everyone has different tastes, so my HB9 could be another guy's HB6 and vice versa, but here are a couple of girls I met on there who I'd consider HB9s...
http://www.pof.com/viewprofile.aspx?profile_id=37647619
http://www.pof.com/viewprofile.aspx?profile_id=38301647