When I make a server I think a lot about how I'm going to do it, the offlevel is key in the game but you must know how to do it, for example I always set it to last 6 hours only,
I wanted to make a kind of stamina for the offlevel, you have to recharge the offlevel either playing or being disconnected from the game, because if not it is easy to re-enter and leave it offlevel again and it is continuous for 12 hours.