I trust Ken Griffey Jr mostly because he's been my favorite player since I was a kid, but I also because I think I have good judgment.
Not shocked all. Thought he was on something and this confirms it. Manny doesn't shock me either and the two of them were close so that just makes it more obvious.
Sosa, McGuire, and Bonds weren't shockers either when they tested. I felt while the home run chase was going on that Sosa and McGuire were cheating especially Sosa.
The only true surprises that would make me feel pretty disappointed actually would be Griffey Jr, Randy Johnson, Derek Jeter, Curt Schilling, Tom Glavine, John Smoltz, and Greg Maddux.
Beyond that nothing would surprise me.