Thanks Steve, I was thinking I could combine the two and I have been using diamond burrs for sometime now with the glass and a couple of mirrors I have engraved. I have not really used carbide for glass. Diamond burrs really dig into the glass and I can control the depth and know which ones do what. The easiest place to go to see some and it is just a small portion of my glass and mirror engravings is
www.myglassart.org/handengraver
Anyway check them out and give me an opinion if you want. I would definitely like to hear from some of you. I have seen some really good engravers and their work on this site.
david