Matsudaira-san is the genius behind not just MYSonic Labs but the man who makes the innards for Air Tight and TechDAS as well. I'm not surprised you like his stuff HF guy, I've been a happy customer for years now. He and Nishikawa-san go back 4 decades, their offices are just 15 minutes away from each other. Nishikawa-san told me that when he decided to design inert cartridge bodies Matsudaira-san was his automatic choice to supply the rest. When TD released the specs I knew it right away and I jumped immediately. The TD Ti is one of my favorites as is my Ultra Eminent Be.