That was a standard work schedule for LAP before 3 crews started. Back in the 90s and early 2000s LAP always worked five 10 hr days and Saturday’s when they needed. There were years where every other Saturday was worked and sometimes 2 out of every 3. Personally I think 3 crews is bad business. It basically leaves no room to cut back without laying people off. 2 crews with tag relief always made more sense to me. But I’m just an assembler.