Happy to help.
Also, if you go in person with your CON, I *believe* they run it through SAVE. As we know, SAVE can be finicky... though, with a new CON, one would hope it comes back verified instantaneously. SSA can verify a U.S. Passprt visually, which means going with a passport is preferable when possible.
In fact, the SSA manual tells its staff to take passport over the CON/COC if presented with both, because the former is easier to verify an avoids utilizing USCIS systems.