As a PT'er I was told if I transferred I'd start over again at the bottom. Not a problem.
Then they said if I transferred I'd be banned for 5 years from re-applying for any non-bid job at my previous hub. The union backed them up and said yes this is true.
Apparently UPS prefers paying for extremely high turnover and punishes experienced workers who want to be more flexible. The entire unemployed population should be told, "Want some quick cash? Apply for a PT preloader or package handler job! You can sit in a training room and watch videos for a week, get paid ~$150 by UPS, then quit on your first day of work in the trucks."