I would ask CGC & Cb-other-CS graders if they have "theft alert" of some type of look out procedure in place? Meaning they can lay a image out when it was slabbed and be on the alert if it is re-submitted raw. I doubt this can be done
for every comic, however above 5K "they" have a chance to play hero as a safety net & recovery agent. Is the recipient "bullet proof" in terms of reputation, like the "husband" when wifey disappears, your recipient
has to be considered, not blamed but ruled out? Someone else mentioned packages requiring sig being dropped without one anyway, this happens far to often making the Post Office's exposure here far to REAL. They just did this exact thing with a SS#1
and a CGC 9.8 X-Men #50 I sent with signature required, left it right on the porch!!! SOLUTION: I can't use USPS anymore ....not on anything of real value or an important book....PERIOD.