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i just drew a grid on the stone and wet some 600 grit wet &dry and a piece of 10x6 saftey glass placed the wet &dry on the glass and rub the stone in a figure of 8 until the pencil grid disapears.
i...

did you have a look at these ones?
http://www.axminster.co.uk/product-King-Japanese-Fine-and-Polishing-Waterstones-20288.htm
or even ...