Too late to edit, but for the same reason if I possibly can (i.e. no checked luggage or bag drop open) I'll wait post- not pre-security. The common thing being

Too late to edit, but for the same reason if I possibly can (i.e. no checked luggage or bag drop open) I'll wait post- not pre-security. The common thing being just to move forward as far as possible as soon as possible, and spend as long as possible with nothing imminent to do.