Posted By:
BrianJim,
that would be a great N54 project, perhaps one that could be initiated at the National, since the major grading companies should all be there. I think it would be extraordinarily informative for all of us collectors. A "definitive" Mother-of-All-Grading-Company-Comparisons...
But I would add at least one modification: to gain statistical significance, you'd probably need more than 10 of each, and I think you'd want to have a distribution of both high and medium/low-grade cards, although I guess for the purposes of this comparison, perhaps only the high grade cards are relevant (although this would not really affect me too much, since I am not a Backbone of the Hobby). On the other hand, Vg-Ex cards can also be trimmed.
Brian