By post verification, do you mean checking the 'matched' Tristimulus does now 'match' (within sensible limits) the Spectro?
If so, yes, it is assumed such a check would be performed by any user.
As for probe alignment, there are many different views on what is 'best'.
Some suggest doing one probe after the other, on the same exact place on the screen, even going as far as to set the distance such that the FOV of each probe is identical.
Others suggest placing side-by-side and measuring at the same time, so there is no display drift...
(With, or without FOV matching.)
But, using one probe in non-contact mode can generate issues with reflection, is the room is not totally dark...
So matching FOV can have its own problems.
And it is also necessary to check for polarisation issues, making sure that the probes both read consistently regardless of their orientation on the screen.
(ie, upside down, rotate to the side...)
The final choices on what is best for you, are really down to you.
Mob Boss at Light Illusion