One of us misunderstood the other.
I thought you were saying we need another mail class, as in a 3rd class that wears mail, presumably because we have 3 clothies, 3 leather wearers, and 3 plate wearers.
I was saying, we do we need to worry about that balance since we have personal loot. In other words, there's no such thing as loot competition for gear that has an armor type.
So... I don't really get your response here, but I assume its because there was a misunderstanding along the way.