Originally Posted by
tennisguru
Just be aware that generally it is hard to get a RES YS on your of days as that step is pretty far down the trip coverage ladder. They’re more common in very short staffed categories obviously, but kind of like green slips they can come and go month to month.
It's also important to be aware that if your timing is bad enough, your YS only apply within RUO. You might fly on your off days and still never be able to fill up.