I shaved with two razors honed on it tonight. One was better than the other for sure but they both pulled on my upper lip and the coarse hair on my chin. Close but no cigar. I can get a good slurry and it does turn "grey" grey. I will try to count how many laps I do as you instructed and try to dilute and do they same. I use one drop from my finger at a time so not much water. As far as selling, this will probably be one of those stones I'll never sell. It's too cool looking and different. I guess they're all like that which is why their are stone hoarders