Also, forgot to mention that all trip-trading, swapping, picking up open time, etc is all done by sending an email to scheduling. Most days, time permitting, they have a round-table meeting where they award/deny all requests, then it's your responsibility to call back and see if your request was awarded. Obviously I've met a lot of people who've found that their trips were inaccurately denied for coverage, someone senior awarded, etc, and after significant legwork on their end to prove it, they got some form of compensation. But at PSA, they have an app where they can change their schedule instantly and objectively.