He is correct except i think a few have determined the pad is not neccesary if the ferrule is full capped ivory and not really necesary for any other type of ferrule. Let's see what Mr. webb has to
say , he is usually the one to listen too
If were talking carbon shafts it's a barrier for the vault plate sometimes, wood : I've heard it softens the hit, protects the Ferrell but I think it's mostly for looks. A kamui with a clear pad cut clean does look nice