Should have been a bit clearer in my answer. I have had 30 'payments' But only worked around 20 days off. As PP states we get a double payment in we go over midnight or start before 0600.
I'm nowhere near the top some guys have done 60+ days. I've been lucky(?) to have leave i didn't really need so could sell back for flexi.
That said we do seem to get a lot of days off but we can work long days (14 hours). So if you worked a normal shift of 4 on 4 off you would get around 15 days off a month, more than us on average.
BB