PLEASE READ THE PINNED COMMENT for clarification on soaking the Naniwas.
I compare my Shapton synthetic stones to my Naniwa Synthetic stones. Here is a list of the stones I own as of the time I post this video:
Shapton Glass: 120, 220, 320
Shapton Rock Star: 500
Shapton Kuromaku Pro: 320, 1000, 2000, 5000
Naniwa Chosera: 400
Naniwa Gouken: 600, 800, 1000, 4000 (Hayabusa), 8000 (Fuji)
Naniwa "Green Brick of Joy" 2000
