It's a crapshoot. At F9 you MIGHT lose PHL but will most likely gain seniority much faster and in the next negotiating cycle possibly close much more of the compensation gap. Of course much faster seniority naturally helps close the compensation gap anyways in real world W2. Not to mention that all F9 pilots are on Airbus pay vs JBs TERRIBLE E190 pay (relative to what 99%+ of other MAJOR airline pilots make).

Yeah, yeah, I know, just being"negative".