My advice is if you send comics to CGC for grading thoroughly check them for cracks, scratches, partially opened cases etc IMMEDIATELY when you get them back. The quality of work from CGC has plummeted in the last year.
I submitted 30 books ($672!!) for grading and a full 6 months later when I finally got my order back from CGC, 10 of my books had scratches on the cases. Oddly it seems to have been a case defect because on all the books the acratch was exactly the same, same size, same location, everything. When I sent this to CGC the reps response was "oh well we don't fix "minor" scratches.
I could have put up a better fight except I waited too long and more than 2 weeks passed since i received my order. To which the rep said "oh we would love to help but....policy and we don't fix minor defects anyway. But hey you can submit for reholder for another $20/book!"
So now I am stuck with 10 scratched books. But what was disturbing was the flippant way my concern was addressed by CGC. They literally didn't care at all that they sent me scratched cases. CGC needs competition. They can treat customers any way they want because there is no where else to go for grading service. Personally I am done with CGC. I have spent thousands of dollars with them but if this is how they are going to be I will not be giving CGC any more of my money. I will take my chances selling my books raw.