Reserve changes during the year. It's gonna be a bit longer when they slowed hiring after you (around thanksgiving and x'mas), and it's gonna be shorter when you have couple classes right after you're hired. As simple as that.
If you think reserve is bad, just wait till you get extended couple times a month, and they refuse your comp. day. With that said, we have a great bunch of folks flying the line, just a bunch of morons down in MEM that run the show keeps screwing things up. Our latest and brightest invention upcoming is, Pref. Bid. Just wait until it comes online in August, and you'll feel your lifestyle just go down a notch lower than you have now.