In reality, there's no standard for "special" or "extra special". There are even places that use "special" simply to refer to domestic beef

Zuikaku, just now you said you "have eaten up to extra special galbi" don't you ? But how could you talk about those restaurants that are famous just for their cheap price, in this restaurant that only serve very high quality A5 rank beef I brought you to today ? What are you coming here to learn for anyway ? A5, the highest rank in Japanese beef grading system

How to fight a war...