Okay, so according to that excerpt, than it is completely reasonable for Hiei to have one since she is a "Flagship", and add to this that she is the Flagship of Musashi's Guard Squadron. So it is even more likely that she would have it.<br/><br/>Also, as you say, if it was given to all Flagship Battleships, then why did Hyuuga, and Kongo not use it in their fights against I-401?