I just received my new 204 and have played around on a couple of knives. Unfortunately, I live in Ireland and can't get Ajax or Comet dry abrasive cleansers. There are a lot of cream cleaners etc. with a variety of unknown chemicals but i'm not sure if I should risk trying them out on the ceramics. I don't want to make it worse. I've tried the rubber eraser technique but there is still steel visible in the corners of the rods. In fact, to my fingernail, the corners seemed smoother than the flats, right out of the box. Is that normal and am I just being a novice? Also, any thoughts on non dry cleansers would be great.