How do you handle the icao rules without abrogating seniority? Will 55 year old FO’s bidding domestic trips get those trips robbed for 66 year old FO’s who can’t bid international? Will younger FO’s get pushed off of narrowbodies so a junior 66 year old can be assured of not going overseas? That’s the biggest challenge IMO. I’m fine with 67 if you start at the bottom of the list again so you don’t rob senior people of trips/fleets they want. Everyone seems to forget that older doesn’t always equal more senior. I had a 63 year old a class behind me.