I just got 2 1700+XP's from NewEgg.com... and they were both "B's".... a good friend of mine wrote me an email about them...
You lucky <edited> ...=O Them's the goooood ones. =O Those (unless I'm seriously mistaken), are the ones I'm reading about hitting 2.3-2.5GHz when pushed hard, with extreme cooling. IF those are indeed the ones I'm thinking, you'll see 12.5 x 150 no questions asked.
They're definitely "B"'s (jiuhB), both made in mid March of this year (date code is 0310...03 = 3rd year (2003), 10 = 10th week of that year (mid March).
The slight difference of XPMW and WPMW is irrelevant. I gotta go check and see now but...hot dog, buddy, I think you hit paydirt! =)