It's a very little used crew, but it seems pretty handy. This is a definitely situational upgrade, but when doing a K-Turn you are extremely vulnerable and having that focus really helps a lot. So when considering this upgrade you have to weigh the amount that the benefit gives you, because you are not going to use it a lot during the game.
Another good use is combined with Deadeye.
Thoughts? Anyone found this to be good for them or is it just better to use something else?