Well...it might be something else entirely..I'm not too positive about this company...but it was the only one I could find that has Tbred Xp2100+'s in stock, for pretty cheap, and they actually tell you the stepping...however, before I ordered, I called to see if there were any left. There was, the guy said, and I asked: 'You are sure these are Thoroughbred revision B?' And he replied, in 'turk-swedish' : Haha, yes man, yes yes, see all below 2200+ are B's, haha'
I said :' No, they're not.'
He said :' Very easy it is, ALL under 2200+ are automatically B, no A's, easy, it is'
I said :' No, they're really not'
And well, he didn't sound quite so happy when I finished talking to him. Ordered today anyway, so we'll prolly see what I get.