I tried converting what was a "conventional" scraper into a NRS. I ground a bevel on the top surface and then flipped it over to grind the lower bevel and create the burr. When I went to use it, there was barely a spec of dust coming off of the piece. It was like I was putting a blunt object against the wood. Can someone tell me the correct way to grind a non-NRS into a NRS. Thanks.