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I usually use Cerium which I don't think really sharpens much but adds mostly smoothness to the edge. Barber hones are cool and I do use them from time to time but remember they usually finish at 8K...

I wouldn't use it dry, that's just me. What I would do is use lather thinned out with some water so the hone is less rough. Also vaseline, like Sham said, smooths the stone out. Some of the boxes say...