I have found that Natural Chinese stones Vary quite a bit from stone to stone and that there are basically 3 different finishing techniques between them that seem to work out depending on the characteristics of your stone
Water and MANY laps
Using them much like an Oil Stone with Soap or Smith's Honing solution (or similar)
Light slurry and Dilution methods
There might be more out types out there but I have not seen them yet !!!
You have to try your stone with your razors and figure out what you have to work with
Remember
"Synthetic hones are an exact science, and Natural stones are a Romance" don't start tat love affair unless you want to do the courting part hehehehe :p