With a 4/1 roster you live to work , not work to live. 28 days straight is a long time , fatigue starts to kick in after the first 12 to 14 days by the end you are totally buggered and the 7 days off only get you back to a level playing field.
Oh yea if you have a missus, you wont for long, Those sort of rosters cost me two marriages.
cheers duggie