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BobI crossed over a large number of GAI and PSA holdered cards to SGC recently. Of the GAI cards, a few went up, a larger number stayed the same, an equal number went down a half grade and a handful were not graded because they would have been lower than a half grade of difference. One T210 Old Mill which I bought from a board member on the BST over a year ago and looked very nice was not crossed over because "color added."