Is it a fact that part timers cost more than full timers? Mrs W was on a 50% roster for BA Connect (with less than 1500 hours total). BACon policy was no standbys for part timers so they were rostered first, often on touring rosters, and ended up flying 75% to 80% of the hours of a full time pilot with 50% of the pay. Not complaining, you understand, just making two observations:
1. It isn't always as simple as it looks
2. BA, who were very quick to say BACon was part of BA when it suited them, don't seem to have applied the 1500 hour policy universally.