Frate has summed it up pretty well.
Just to add a personal observation about back to back days off. It is possible to combine days off but that normally leads to doing a double stint in Japan. Beware! With the way we are worked, in general, this could lead to doing 30 days or more at 6 on 1 off, with a pretty brutal schedule. Very good way to feel like a total zombie at the end of it.