Posted By:
Jim CrandellAl,
Collectors who are atop the registry in vintage sets didn't just submit there set and leave it. In most cases they have built or improved their sets card by card and have acquired them from a multitude of sources.
There are undoubtedly individual mint cards out there which would improve top sets--however there are no sets out there which would rival the top graded ones--be they psa or sgc.
Jim