Posted By:
Scot Reader
Here are my two (or three) cents:
Labelling. PSA makes more labelling mistakes than SGC. This is a significant problem that PSA would be wise to cure to improve customer satisfaction and build credibility among prewar collectors.
Authentication. Both PSA and SGC do a good job. However, I would be remiss if I didn't mention that SGC once slabbed a T206 Matty Portrait with a RED Hindu back. Anyone who knows this set well knows that this is an impossible front/back combination. SGC eventually determined that the card had been re-backed and corrected the error. But the point is that SGC is NOT perfect. There was a challenge earlier on this thread to point out an SGC mistake. Well, I give you Exhibit A.
Grading. Again, both PSA and SGC do a good job, but they have slightly different criteria and different levels of consistency. With regard to consistencty, I generally agree with Paul that SGC is more consistent. But that doesn't mean they are more stringent. In my experience PSA is slightly tougher on corner wear but misses more creases and wrinkles.
Scot