Gentlemen
Let me refer you to this Lindsay site.........
http://www.engravingschool.com/priva...oint-Intro.htm
I used the 90 degree for years and suffered from the same problem mentioned above. My advice is to make a change to the Lindsay point 120 and learn tool control....
The heal on my gravers measures .004 and cuts with no raised edge even on the tight turns. I do very little stoning or sanding of the engraving. The shadow cuts are microscopic.
Jim