Aloha!
I've been collecting knives, swords, & blades of all shapes & sizes for many years. I have found that all of my six daito & four wakizashi are made of Damascus (wootz) steel, & now I am wondering what percentage of your daito are plain old carbon steel versus Damascus steel.
For those of you who aren't familiar with Damascus steel, please check out http://www.tf.uni-kiel.de/matwis/ama...der_sword.html for more information.
Ken