From my experience, if you are 2BTZ, you know you are 2BTZ.
Again, just my experience, but, if you don’t have a bunch of tier one #1 strats, DGs, exec/aide time and served in specific jobs (I can only speak to the 14N career field on that one) then you won’t be 2BTZ.
The few records I’ve seen of 2BTZ officers stood out as 2BTZ (not that it needs to be said, but a lot of them weren’t “good” officers).