Our club just had a remote demo from Eric and he was absolutely outstanding. In addition to much other info, he described his use of negative rake scrapers. Here are the points he mentioned:
1. He goes from a coarse CBN wheel (60 grit) to a fine diamond hone to a carbide burnishing rod to create his burr.
2. His burr lasts a very long time. And he uses it for much more than final smoothing, but bulk removal also. I think he said he can start sanding at 600 grit on end grain hard maple.
3. He prefers M42 over A11 steel