It's not a flow up.
35% of each class must be made up from DCI ALPA pilots, and flow ups from CPZ and XJ count toward that number.
The rest must meet qualifications and be hired.
I believe it has to do with DCI furloughs that will result from the new RJ clauses in section 1. The 50 seaters in 2015 under current contracts would be 311. The TA section 1 makes it a hard cap of 125.