So I have always used oil on my Arkansas stones because that is how I was taught. However, some reading around on the internet has suggested that stones be used dry, even high end water stones like naniwa choseras! Now the theory behind this is that the suspended steel particles actually act as an abrasive and compromises the quality of your edge. A lot of work has gone into this, and while I don't doubt the physics and the theory I doubt the "clinical significance" of the findings. Basically, I feel that I don't notice, nor could I notice, the difference between the results from a dry stone versus a wet stone. I will probably always use wet whetstones. So do you use lubricants on your whetstones? Have you tried both?