I think in the case where there is absolutely no chance of winning an engagement, while at the same time it is unlikely that a frigate will catch your two or three sloops, an auto resolve option for flee would be real nice. In all likelihood you are going to be able to flee successfully, but why go through the hassle if you know a head of time that is what you would want to do. This is a game after all and fleeing is not the most exciting use of your time. The problem is the current auto resolve forces you simply to loose your ships, unless I am missing something.