That is by choice for some starting in May. There were 19 320 Newhires backfilled into ORD about two vacancies ago. Some of these newhires were actually awarded lines for May in ORD (good lines as a matter of fact).

Some senior guy's might not be able to escape RSV unfortunately, but quite a few are on reserve next month when they could get good lines - maybe they were unaware that they moved up on seniority slightly and still bid reserve.