Score?

[WittyAg]

So I purchased a standard yellow coticule that measures 6" by 2" with a slurry stone. I was expecting to get a slate backed stone, but I think I actually got a combo. The slurry off the back side looks purple so I think that may honestly be the case.

 

[Kees]

The hone is a natural combo the slurry stone ain't.

 

[WittyAg]

That's good news on the coticule itself. How can you tell on the slurry stone? It looks exactly like the big one.

 

[WittyAg]

Talk about a fast cutter too. I'd been using my Chinese 12k as a finisher for a few months, but it would take me 100-200 laps to do the job. ~30 using just water on the coti brought the edge right back.

On my wapi which had a small abberation in the edge though, I followed Bart's unicot method and had a slick and sharp slicer in no time.

 

[Kees]

It is the straight line between black and yellow that is tell tale. Often you can see some glue as well.