bad night?
simply telling you what I know has worked in the past with stuff I have mailed, (I run a small business, I mail a lot, 90% thru the USPS)
I have talked to my post master, several times, and a few others on occasion thru out the nation, when needed for insurance claims (rare)
there is no First Class Priority mail, BTW, it is one or the other, , (first class ,or priority, not both)
never said I was superior to anyone here, that is your habit,, still got that lovely PM saved with your resume on it,,,,