Originally Posted by sftrvlr
1) I don't think it's true that miles take priority over certs.
Miles can confirm at the time of booking, effectively making them have priority over 500 mile certs and other standby certs. For certs that can confirm at time of booking, there is not necessarily a priority. I'm not sure if the waitlist sorts by type of upgrade, other than all confirmed upgrades first, then time-verified certs.