Originally Posted by e6bpilot

By seniority, based on DOB.

First month (IOE month), you will get your "base of choice" assigned by training, second month you will get a hard line in your vacancy awarded base, after that it's reserve and monthly (for now) vacancy bids. As long as hiring keeps up, things should keep moving quickly.

Planning has increased the number of reserve lines for the summer, so expect a little longer on reserve.