RebE, re:a’z – opinions seem to evolve over time and cultures. There may be a differntiation – whether it is a’z for a Jew and not a’z for a non-Jew.
Seems to be still a heated debate. I once attended a talk by a Rav who discussed this distinction and concluded that there is no way to make it a non-a’z for non-Jews. While he was talking, he sent around a book he co-authored on this topic. when I confronted him that the book does say that it is not a’z for non-Jews, he signed and said that this was written by his co-author.