Sounds like there needs to be a plus and minus discussion.

NK has green day drops and X/Y list(200%).

For example, you could drop your entire month with the intent to have unlimited days off.

You can choose to list yourself on X/Y and work on a day off for 200% pay.

Don't want to say anything that could possibly be misconstrued into some kind of RLA thing but some people are really good at taking two different parts of the contract and making it work in their favor.

or say you're a new hire and didn't get the base you wanted right away, you can green day drop your relief line and pick up in your base of choice.