“Aged maguro” sounds so much better than “old tuna.” When it comes to sushi and sashimi, many say that for the best taaste you should use the absolute freshest fish. However, when it comes to maguro (tuna), apparently, this isn’t necessarily the case. At a press conference on Thursday (Nov. 7) the popular kaiten-zushi (“revolving sushi”) chain Kura Sushi (Kura-Zushi) announced that …