I tried searching for this in the sidebar, but it hasn't been asked lately and there have been a few changes to USPS's transit routes and service standards over the last couple years so...
Long story short, I accidentally ordered FCM instead of the usual priority for my latest pack. I didn't realize until he had already marked shipped so I just said fuck it. It was marked shipped last Monday, 5/8, at about 8:00pm and no sign of it yet. I'm not concerned really as the vendor has pretty positive reviews for the most part, just more curious as to how long FCM really takes. USPS website says 1-3 days but most of what I read indicates that might not be super accurate all the time.
Anybody have any personal anecdotes? This might be helpful for other DNM users!
edit: Domestic order btw
I drop FCM in batches. Shipped doesn't exactly mean 'shipped' in this case.