I'm using the following brand (from Amazon)

http://www.amazon.com/gp/product/B00...164309-7326800

I guess it has good quality because I didn't have any problem lapping the 8k Norton...


one more thing....

I don't soak the Shapton in water before each use, I only spread some water over the stone before using it ( I do it because the instructions from Shapton say that)