Let's say that you get a schedule that you don't like. Maybe you are working a holiday and don't want to, or you would rather have weekends off, or are assigned a trip with a Captain that you don't like flying with. At most airlines, you would be stuck flying it, or have very little chance to change your schedule.

With the SAP, you can drop every trip that you don't want and pick up new. You can increase your flying, up to 96 hours. You can decrease your flying down to 65 hours.

With the SAP, there is no reason that any lineholder should ever have to work on Christmas, Thanksgiving, 4th of July, or any other day that they don't want to.