Retired after working this 12 hr shift for years: 4 days starting on Tuesday then 2 off, 3 graveyards-2 off, 3 days-2 off, 4 graveyards-8 off. Rinse and repeat. Greatest shift I ever worked. You actually work 120 more hours per year on this shift (extra pay, imho) Basically we were off half of the year. Combine that with your vacation and that's serious time off. Sounds like your proposed shift is similar.