realskiers

Ceramic edge (wet grinder)-It's a higher end edge tuning machine that uses an astonishingly hard ceramic stone to sharpen, polish edges.  It turns a fairlt pitted rusty side edge into a polished new edge better than any hand tool and any edge-file machine ever can... The unit is very expensive and very few shops...even high end shop have them, but the ceramic edge is worth the extra 10 bucks it adds to a tune.

Your naked eye will instantly see the difference, and if you look at comparative edges with a spyglass, you'd never get a regular side edge tune again..  And, you'll feel it when you ski, too.  Same caveat, though, I poor technician can really F-up a pair of skis with a ceramic edge grinder, make sure their a good pilot driving tha machine.