Posted By:
Albie O'HanianI am not an expert on grading but here is my opinion based on cards I have and what I have seen written.
First, it would all depend on the centering. Some 8 OC cards could very easily qualify as a 7. Some might get a straight 4. A 90/10 centered card that is an 8 OC would qualify as a 4. There is a wide range of off center grades in an 8OC.
On the PSA set registry an 8OC gets the same rating as a straight 6 or two grades lower.