Yeah I know that. DMT makes great diamond stones. But I was talking about something more like a fail-proof system, not benchstones, rods, alignment guides or general sharpening material for free-hand sharpening. Every major cutlery manufacturer invests millions in R&D searching for better steels, heat treatment, locks, sheaths, carrying systems and every knife related accessory you can imagine except efficient and "friendly" sharpening systems. Yes, Spyderco's Sharpmaker and its similars are great but is far from a complete do-all system and the Edge Pro is quite cumbersome, difficult to assembly and use, not to mention expensive. What else we have in the market? A bunch of useless gimmicks and junk which ruins your knife instead of actually sharpen it...