If my memory has not failed me, the AFA board meets every Monday when the AFA is in session. The results are compiled with the RDs on Tuesdays. Appointment letters on Wednesday/Thursday.
This will occur weekly until the close date.
The thing to understand is how appointments are charged, for example, the appointee with an LOA may not necessarily be charged to their MOC. Meanwhile candidate number 10 on that slate waits to the last day to submit their CFA. You see on the appointment thread candidate LOA district t 11, your district, but did not know they had an LOA, so you assume great
I am now going into the pool, when in reality that slate might not have been charged yet, and the reason for not hearing is candidate10 has yet to be boarded.
The same can be said for the candidate that has 3 or more noms.
It is called mass mailing march for a reason. Also, in march they don't send out all of them in one day, it is over a course of several days. I think if I recall it is not days, but about two weeks of letters going out in bulk.
Hope that helps. Just remember that this is if my memory has been accurate, and if things have not changed in the last couple of years.