I was surfing looking for turning sharpening videos. I watched Jeff Farris' very well done video about the 185 gouge sharpening jig. Then several good Glenn Lucas videos. Finally, I found some David Ellsworth videos. All were fascinating. I would recommend all to the forum members, and especially doing a google on ". David Ellsworth videos". His video on the Ellsworth grind gouge is most informative.
Enjoy.
Ken