Hey Max, that's funny. I just ordered a 3.0C from NewEgg also in hopes of getting a WU. Sorry to hear that your first experience with a Prescott wasn't too hot - or it was. I'm surprised it took that much voltage to get there. Mine requires 1.55v at 3.5GHz and I felt it was too much for 24/7 100% load operation (FAH x2). However, I did find that lapping my Prescott improved temps by 6°C. I was pleasantly surprised to get that much of an improvement, but I'm glad I did it. Using an SP-94 and Panaflo 92mm 57cfm. Maybe I mounted it better this time, but it's still a good improvement.
Hope we both get a WU. Did you order OEM or retail? I ordered OEM, hope that doesn't turn out to be a mistake.