This is probably the latest (July 2015) article about Miyajima Kansui from Koetsu Rosewood user:
https://darklanternforowen.wordpress.com/2015/07/31/miyajima-mc-cartridges-fresh-thinking/
https://darklanternforowen.wordpress.com/2015/07/31/miyajima-mc-cartridges-fresh-thinking/
"The Koetsu Rosewood paints a beautiful sound picture with magical emphasis on harmonic information and nuances revealed."
"The Miyajima presents a more “solid” sound, surprisingly, with much more low-end power – and “stereo image” definition achieved without excess brightness. Voices and instruments are clearly located in space."
Any other Koetsu Rosewood Signature users here ? These cartridges are in the same league ? Very interesting.