On this thread and several others, we have the benefit of before and after pictures. The grading companies do not have them nor do they have the time to research each card submitted to see it's history. As has been suggested repeatedly, and for many years, many alterations are simply not able to be detected no matter how much time or money is being charged. Someone, maybe it was earlier on this thread, posted a quote from SGC on this very issues. Not every card has to go through massive restoration to go up 2 or 3 grades. Even a one grade bump can simply be the results of a grader being too tough at that particular moment.
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