MWDS seems to indicate just after the resync target was 5db and has remained around that all day.
So you are able to confirm that a SNRM datum point was harvested not later than a minute after the resynchronisation event had occurred. in view of that fact, I am happy to agree that your circuit's target SNRM does, indeed, appear to be 5 dB.
A subsidiary, rhetorical, question would be: "
How low will it go?". We must watch and wait.