Anybody experience wether I can use Norton India combi stone (coarse/fine) with water or dry instead of messy oil?
Certainly you can use them dry or wet. I've used Norton Crystolon (SiC) and India (AlO2) dry and with water. They load up faster dry, but are definitely not messy at all. With water, there's more mess, but I've changed my opinion on this recently. I think the whole sharpening experience is nicer with a stone that's lubricated. There are several advantages:
1. With a stone that's wet, it's easier to start a motion on the stone. So there's less skipping or stuttering when starting or stopping a motion. In other words, every stroke or motion is more fluid and smooth with a lubricated stone. This should lead to better edges and probably leads to the person doing the sharpening enjoying it more.
2. The water or oil on the stone catches the ground off metal, trapping it before it can get into the air. Airborne metal is very bad for people to breathe.
3. Wetted stones seem to load less than a dry stone. I see big dark marks on my stones when I use them dry, but much less so when I use them with water.
4. While a lubricated stone seems like it should be less abrasive and cut more slowly, I haven't really noticed a difference in cutting speed.
I'm still not in the camp of using actual oil on a stone, but who knows? Give me a few years and I'm might write crazy things here about how everyone should use oil on stones!!
Brian.