I've asked multiple vendors about overnight shipping on bulk bud order so I can really flip the shit out faster than I can buy it, but they all say they only ship priority mail for safety issues.
What causes this to be an opsec problem?
I'm sure some have worked around it, if I'm not looking hard enough point me in the right direction
Overnight express is extremely risky for sending drugs of any kind, especially bud. It requires the sender to physically hand the pack to a postal worker and fill out some paperwork, and if the vendor doesn't make it by the day's cutoff (usually 10am), it's not guaranteed for NDD anyway which means 2-3 day priority ends up being just as fast. Also, packs sent using the service face a lot more scrutiny simply because there are fewer of them at any given time. Priority just works better; it's cheaper to send, there's a massively larger volume of it going through the mail system every day, and it usually ends up arriving in the same amount of time.