I have been trying to find out something similar that this may answer, if you know. I want to submit books under pressing with fast track service, and grading WITHOUT fast track service. However, that option is not there anymore, and I am automatically charged fast track for both pressing and grading, which is an extra $15 a book. I called CGC and they said I have to pay fast track for both, but that does not seem right. I tried exactly what you said here, but was wondering if CGC would consider this to be 2 books instead of 1 when they receive it. Do you know about this, or if it would work? Thanks in advance!