4 12s one week, 3 12s the other, 4 shifts. I used to have that at an old job and it was kind of nice having 2 days off in the middle of the week and every other weekend having three days off. It would be Tuesday,Wednesday, Then Saturday, Sunday, Monday. Then Thursday, Friday.

I suppose you could do this on 8 hours and have 6 shifts instead of only 4. So only a 28 hour work week on average 24/32.