Posted By:
Josh K.cmoking-
I dont believe sgc grades in that way. They most likely look at centering first. If the card is not centered 70/30, then in most cases its not going to grade out at an 84 (7) regardless of what the rest of the looks like. The exception being that tolerances are allowed for centering but must be within 5% of the standard and it must not detract from the overall eye-appeal of the card. Back centering is less critical than front centering and a tolerance of upto 10% in excess of the front standard is allowed. (This is taken from their grading scale - link below):
http://www.sgccard.com/default.asp?PageID=2