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