Sooo I'm texting a fellow knife knut and everytime I ask him what hes doing hes sharpening knives. So I texted hima and he said "Sharpening my new gerber knife on a ceramic cup." ....whatt...... So he told me if you take a ceramic cup or mug and flip it over you can sharpen it on the bottem. Now I'v never heard of a sharpening cup. He said his dads friend Bret told him about it and he told me its one of the best things you can use to sharpen a knife, is this true? If it is, then why don't they sell sharpening cups or sharpening ceramics. I don't know, sounds kinda fishy to me.