I've noticed companies that sell swords are advertising certain swords in which they claim the blades are made with damascus steel. From what I've seen of it, using damascus steel results in a wavy pattern. Im wondering if damascus steel is any good and that the companies that claim to use it if they're using genuine damascus steel or are just making that claim and using some kind of knock off. Also, if damascus steel is over rated as it seems to be a new fad.