4 and a bit grand, never worked more than 730hrs in a year yet, 6 on 3 off works really well, yes there are flexi days, but often day six may be the last part of day 5 flight, or an early sby, etc so it can be 5 on 4 off at times. you can also do 6 solid days and be knackered. Staff travel on easy network has improved massively, Balpa are trying to negotiate a proper 5/3 but hey, lets see.