You are right about size , and the ability to pick up overtime in the form of trips ( if they are available) in the 121 world but we are talking about new hires here who by the luck of the draw are landing or not landing in busy fleets, it is what it is , and not a permanent condition. So far every , and I mean every pilot I have flown with in the XL likes the IBI , YMMV of course. I completely respect the opinions of those who feel otherwise.