I feel that if you jump on the bandwagon at XYZ regional with quick upgrades then you will be too late. Granted, the people at skywest who are currently upgrading have only been there a few years. If you get hired now then how long will you have to wait? Its a gamble. I say go to a place where you can be based where you want to live and enjoy the QOL somewhat. If you go to the quick upgrade regional and things dont work out then you are living in some random city stuck as an FO hating life.