Scott,
I am only a minor league back collector compared to others on this board.
Ron,
Thanks again for providing the PSA numbers and for expanding on the SGC Authentic question.
Tim,
To the best of my knowledge 27 out of the 33 SGC Authentic Drum's all came from the same collector and were part of the 2007 Hunt auction. I believe all had the tops trimmed to some degree. I am not certain why the other 6 received the Authentic grade.
Jerry