Board Thread:Questions and Answers/@comment-5628819-20130120232222/@comment-4822693-20130308211532

I think the issue is not that he wasn't a menos, but rather he was simply a really weak hollow. Correct me if I'm wrong, but I think Urahara said that if you removed the mask of any old hollow it wouldn't result in much. Grand Fisher might not have been a menos, but he was still a relatively powerful hollow. It seems the more powerful a hollow is, the more like a shinigami they become when their mask is removed.