Did you know the Justice NSO's are working hard on sharing their knowledge?
There are several guides coming up, not only about positions, but NSO-ing in the whole.
Penaly box manager Cheat sheet. (Update 2018 - cues, codes and signals)
Inside White Board / Penalty Code Cheat sheet. (Update 2018 - cues, codes and signals)
The travelling NSO guide.
The centre of penalty attention. (2018 version comming soon)