Have you tried the Jawbone II noise assasin?
Yes, I have. I found it to have a lot of static. I've also tried the Blueant Z9 and Z9i, Moto H12, H690, H680, Jabra 2020, and Plantronics Voyager 520. The motos worked well, but I don't like the charging system they use. You lose one piece and you're SOL. I haven't tried the Discovery 925 yet, but I don't feel that I need to spend that much money for a fashion accessory (comes with its own purse?)
I have a pair of S9s and they do work great, but they're not too useful to me since I can't use them in my car and I don't like covering both of my ears whilst I walk about outside. And I think my S9s are also counterfeit, lol.
I might bite the bullet and try the WEP200. I would like to own a small, lightweight non earhook bluetooth that sits in my ear. Just a normal boring workhorse, and I've heard a lot of good reviews from the 200.