Take a UAL pilot hired January 1 2000 and a CAL pilot hired the same date. The UAL Pilot was furloughed for 4.5 years and the CAL pilot for 4. Upon signing of the TA, the CAL pilot gets full longevity credit and the UAL pilot gets none. After the SLI is complete, the UAL pilot may get additional longevity credit, but that will be tied to a CAL pilot hired after him. How is that fair, in good faith, and without discrimination?