Over a season, Hurricane, the delays do work out in favour of the RPSI. However, the real issue is a combination of intelligent planning of timetable paths, crew familiarity with relevant engines, and mechanical reliability.
Over the years the RPSI has built a strong and successful relationship with first the UTA, then CIE, then NIR and now IE. Long may it last - it's actually at its best in recent years.
......yours hopefully
Disgruntled, Corofin.