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PASDaniel I don't know what exactly is involved in grading a ball, but obviously there is some subjective element. Perhaps Doug meant only that a firm such as Mastro, with its own in-house experts etc., could more effectively present a case to PSA that a ball was deserving of a particular grade. In an ideal world I guess items would be graded without the grader knowing the identity of the submitter and without any interaction, but one would have to be naive to think that is always the case.