Week 1 - Off mon, tues. On wed, thurs, fri, sat. Off sun
Week 2 - On mon, tues, Off wed, thurs. On fri, sat. Off sun.
Week 3 - On mon, tues, wed, thurs. Off fri, sat, sun.
It then repeats so you get a 5 day weekend every 3 weeks.
Will be booked in for a Sunday roughly once every 4-5 week but you...