You don't have any prior-121, do you...Why the Maddog1974 handle?

All I can tell you about PSA is that pay-rates are fixed, just like any other airline. You're going to start out at first-year pay no matter what. And if you meet the posted-mins (comm. MEL), why not apply? Would they lie about their hiring mins ? Keep in mind that with 300 hours you won't be very competitive.