Problem with Venev (OCB stone). Scratches too big?

[Gritomatic]

Why not? My 1000 grit plate still works as well as it always did and my Venev stones no longer leave any deep scratches on my knives. I also use them dry and intentionally leave the swarf alone to let me know if I've reached the apex when it starts scooping up the shavings.

We got many reports from customers that lapping Venev diamonds on an electroplated diamond plate leads to a dramatic drop in performance because Venev becomes bald. My experiments confirmed it. Lapping on diamond plate is officially BIG NO for Venev bonded diamonds, Poltava metallic bonded CBN, Poltava metallic bonded diamonds and Poltava resin bonded CBN.

F1200/F2000 is not big deal - too many exposed particles of very small size. If the concentration of exposed particles has decreased after you have lapped it, it's good (for this particular diamond).