Question about getting 1956 Mantle Re-Holdered with new PSA Label

[Empty77]

Originally Posted by swarmee

A "review" submission is where you send a PSA graded card to try and get a higher grade. Normally they only reholder if it attains the higher grade, but you can sticky note it asking for a new holder anyways. PSA may or may not reholder it if it doesn't improve.
A "crossover" submission is when you send a card from a different grading company.

Not the OP, but just butting in here for my own edification (and any others wondering):

If something were submitted for formal review, and if item were determined to warrant a different grade, do they retire the existing cert# and issue a new one (which would bolster the reason for doing it, if one presumes that modern cert #'s are preferable due to presumed stricter modern grading),

or, do they keep the existing cert and just update the pop report database to reflect the change (in which case there is virtually no reason to re-holder or review, unless it was just desirable to get any enhanced security features of the newest slabs---since new buyer wouldn't know that it had been formally "reviewed" [w/ modern standards] vs. simply paid for a plain 'ol reholder)?