We went to 12's about 21 months ago. On the initial vote just slightly over half the people in patrol voted in favor of it. After six months another vote was taken with 75% in favor. The three day weekend every other week is nice. Court appearances in the middle of a two day night shift sucks.
One big benefit is that everyone works together every day and as a team, have the days off together.
All that is neccessary for evil to triumph is for good men to do nothing