Originally Posted by
onimaru55
Slurry cannot possibly change the grit rating of the stone in a big way unless you dig at the stone with a coarse medium & have large particles floating around. It does increase the cutting speed to match a slightly coarser stone & it also gives a slightly less sharp edge due to the slurry dulling effect... generally speaking... with synthetics.
With naturals it depends on the individual stone..
You need to try both, with & without & combinations thereof to establish your own answer with your stones .