First efforts were to dribble a few drops on the wheel, smear it around with my fingers, then turn it on. I did get sprayed a few times. Now, I do hone off the burrs on my scrapers before grinding a new one on, and put the trend on the hone, then grind. That seems to be enough wetness to color the wheel slightly as there is some on the bevel when I do scrapers. I am thinking a small paint brush would do an excellent job as well.
robo hippy