From what I’ve seen, at cpz we drop it ASAP, provided it’s safe to drop the brake for one second while holding the foot brakes, all the doors are shut, and it’s not more than 10 minutes prior to scheduled out time.
But in reality, usually I just stare anxiously at the ticking UTC clock as it hits D-0 and pray the rest of the crew will slam the door shut and slap the brake down in time to ever so slightly reduce the chances I get furloughed/downgraded in 2020. Either that or just look sadly out the window as we work our way into D+2 for some trivial and preventable reason. (Assuming our inbound plane wasn’t 2 hours late)
But in all seriousness, I think at CPZ we drop the lever as soon as we safely can, and that’s the way it will stay regardless of what the company wants. We all want to keep our jobs here IMHO