That's subload, not nosub.
Sorry, both treated exactly the same way. I'm not going to quote a company document here but go to IntraCX > iJourney > Leisure Travel Policy > Boarding Policy. Incidentally, I've personally seen cabin crew (11Y) bump pilots (11B) due DOJ. A 12 year never bumps a 2 year.
CXKA: "The problem with internet quotes is you can't always depend on their accuracy" - Abraham Lincoln