As it has been discussed at length, every weeks successful candidates are put into a pool. They are removed from the pool by their SS# Lowest first. Example: Pilot A interviews on March 2nd and has a high SS#. Pilot B interviews on March 6th with a low SS#. Pilot C interviews on March 9th with a middle SS#. Pilot D interviews March 13th with a low SS#. When it comes time to fill classes, assuming all pilots from Feb 23rd week are placed, Pilot B gets called first, Pilot A gets called next and if after placing all pilots from that week, Pilot D gets a call and then Pilot C if there are still slots to fill.