When I received my offer letter the 7/7 option was offered, but it really wasn't. What I mean is that there were 5 potential pay rates:

1) 7 on 7 off at annual salary of $56,459.46
2) 8 on 7 off at annual salary of $56,459.46
3) 8 on 6 off at daily rate of $513
4) 14-day schedule at daily rate of $513
5) PBS schedule at daily rate of $513

It was explained to me that the 7/7 and 8/7 were holdover salaries from previous acquisitions/mergers (maybe Flight Options?). Anyway, the 2 effective rates at 8/6 and PBS, both at daily rates.