I locally worked 5 11-7 8's for 8 years and thought that was the greatest. I then changed to 12's for 7p-7a, and what a difference, to the better, this made in my life..Especially for working graveyards. I now have more of a life, and now have more time for school and household stuff. For 10 years now, I commute 61 miles one way, and the 12's are the best. I am less fatigued at home and very active at work. I am working on my advanced degree, and still I feel I never want to go back to the 5 8's to be considrered full time. 12's...the best!!