I like you was upset when I got my first scratch on my Sebenza. It really bugged me, and did not want to send it in, and be without it so I tried cleaning it with different things, and still showed. And then I got to thinking that the decorated models are not beadblasted only on the back slab so I steelwooled it smooth, and wetsanded it down with 800 grit, and finished off with Flitz. It came out a gray tone, but I liked it. It is a little slippery like some say, but like I said the back slab is still beadblasted, and the knife is NOT slippery in my hand. And now I have not had a scratch show since on the front slab. I even put an icon(Eagle in sterling silver) in the pilot hole on the slab, and has become my own decorated Sebenza, and others say it looks good.
Just food for thought...
Larry