Quote Originally Posted by m52nickerson
The higher the faith in your factions religion the less likely revolt. Zeal can make revolt more likely if you get excommunicated. So it is best to have lower zeal so if something happens, like getting Xed or your King picks up a bad vice the people are less likely to do something about it.
Is there ever a reason to have a high zeal? It seems like you want it for other factions, so your crusades can come by and pluck their best people, but other than excommunication/bad king vice, it doesn't strike me as being useful for anything.