Very late to this thread but, I own a Miyajima Kansui, a Madake, and a Koetsu Rosewood Signature. I liked the Kansui well enough but, after I had it retipped the first time, it seemed like a different and better cartridge. I've retipped it twice both times at Miyajima and find the service and price great. This last time, they offered me an upgrade to the Madake for an extra 550. I took the deal. Meanwhile, I'm running the Koetsu which is newly retipped from Koetsu. I can't say it's any better than the Kansui but, it has a slightly more musical and vivacious presentation. I still think the Miyajimas with their service offer the better value. The factory is quick - probably 3 months to Koetsu's year.