If you're running a ship who's only strategy when faced with a pirate is to run fast, mines could be your new best friend. The NPC pirates are pretty brutal and can take down a type 7 with type A shields and drives in seconds. Big ships aren't maneuverable enough to fight off the bad guys but just running alone can mean a quick death. Fitting out all of the hard points with a mixture of both types of mine and putting them all onto one fire group gives you the ability to run while leaving a deadly cloud of mines behind you. The shock mines so the pirates in their tracks and the blast mines damage their shields. In combination with Point Defence they can make a really effective defence.