I am slowly building up my collection of natural hones and was wondering what lubricants are ok to use and interchangeable. I don't want to permanently force a stone to be oil only or something like that. That is why I ask. When you use soapy water is that just a drop of hand soap? Any oil suggestions or is three in one oil okay? The current hone list is; c12k, coticule, supposed Thuri, Welsh Thuri, Zulu, and actual Thuri. Perhaps, a list can be compiled for the Wiki? Also, does the lubricant affect "grit" rating, keenness, or smoothness most?