i heard something like this, but slightly different. That some stations will absorb part timers into full time positions. I know in UPS, Fulltimers are required to be created by contract , but management target those employees asking them do they wanna go home early.- whenever the sort is overstaffed dictated by volume. Another words, you are fulltime but effectively or perhaps constructively part time in practice. depending on operational needs. I dont know if fedex can do this with commitment times