The 15 that are hitting the vacancy bid in Feb is the D225 class that was in Oct.

The first big class of new hires started Nov 17. They wrap up around the first half of January and then they have to do the all new extended IOE program. They can’t be ready for the Feb vacancy bid, so they will be in the Mar vacancy.

New hire classes started every week after the Nov 17 class, so from Mar onwards they will be pouring into the system.