@bui501-tech came to see me today at my office. I showed him all my 3 versions of headphones, KGSS Carbon, and KGST. He seemed to like my Omega clone and KGST a lot. He did a very good job on his electrostatic headphones drivers. They sounded really nice. He also CNC his own Stax jack and cast the exact duplication of Stax plug. One of these days I'll need him to come to teach me how to cast the plug.