Fat boy
we're talking about ryanair here, not your company. Nassauman is correct: 5 earlies 3 days off, 5 lates 3 days off.
you might not think that lates on to earlies works out at 3 days off in your company but try earlies on to lates....that's almost 4 clear days off (96 hrs) in Ryanair. how would your company work that out? Swings and roundabouts.