Hello Bolo, I have been with G4 for the last seven years. I am a Bus captain and live in base. However, all of that considered, my main motivation to jump ship, like I stated when I started the discussion, is the operational problems, the maintenance issues, the scheduling issues, and a possible strike looming in the horizon. I have also considered Spirit, but no word from them yet. I don't know at this point if I want to go to a major(although I got about 21 years before retirement). Might sound like a difficult decision but I much rather make the sacrifice and lose seniority and the perk of living in base, rather than witnessing the self destruction of my current company.
Now I have a better picture. This is a real hard one. If I were in your shoes, I would not leave G4 for any of these airlines(Frontier,Spirit,Jetblue, Virgin). You are kind of there now but on a lower level and I get your concerns but I would hold out only for the 3 majors and that is it. Ride the wave with G4, and start trying to work your angles with your buddies at these airlines. Now if you were an FO I say jump ship ASAP!
If you want to discuss F9 further, PM me your contact info. and I will be happy to talk to you.
Best of Luck!
BOLO