Originally Posted by
PVDtoDEL
AC does not have a P bucket. Their Z bucket maps to UA/LH/LX P.
Correct - but my point is that it's possible to book Z on AC metal which definitely (at least currently) earns at 200% for much the same money as UA & LH's P fares.
To PVDtoDEL's point though, many flex fares on AC (which would earn 100% on AC metal) drop to 50% earning when mapped to UA codeshares (think Skywest as UA Regional between SFO & YVR).