Pay is a small snapshot of reality. As someone else mentioned the amount you’ll credit is significantly better at expressjet.
Read some of the PSA threads and go back a few pages and it’s discussed in greater detail.
Expressjet FOs are making more than all 3 of the American wholly owned’s captains. If you’re only going to be there 6-8 months maybe it’s not a big deal, but longer than that and the money will be more of a factor. I don’t know about the other places but reserve at PSA is about a year currently and increasing.