I contacted Manskim and he offered me a slightly more expensive stone, telling me it was his best.
But the price of that with 3 Nagura and a tomo is a bit beyond me at the moment.
I have just had 3 weeks off work so funds are at a bit of a low.
Also the stones i was looking at are 70mm width.
I think id rather wait a month and buy a 3" plus wide stone...
I can have a month playing with my new Gokumyo 20k ..yay.