The problem isn't PBS. It's in the pairings. Lousy low time pairings with lots of sit time, multiple aircraft and crew swaps will lead to a lousy schedule.
Find a way to take out at least one of the variables. The pilots or FA's should stay on the inbound plane. Dump the idea of having stray extra FAs coming from different inbound flights.
Crews sitting in places like Cancun with 3 hour sit having to clear customs and no where to sit, is a disgrace.
The contract should not say 5 hours AVERAGE pay over the trip. If we got 5 hours minimum pay per day, then the schedules would reflect that.
This is not meant to be a legacy fight. Legacy UAL was happy with 20 hour 4 day trips. Legacy CAL had 28 hour 4 days and 23 hour 3 days.
Productive pairings can still have 20 hour layovers in Cancun, Cabo and the Caribbean, if we don't sit around all day in airports not getting paid.
Sure, the bottom of the lists will still fly the crappier trips, but at least they will have something to look forward to.