Get yourself a protractor with a pivoting arm and measure the the angles you're grinding. Hardly anybody (might as well say nobody) can get the angles truly correct by eye, and the correct angles matter.
Also see if you can find a copy of "The Design and Use of Cutting Tools," by Leo J. St. Clair. It's 300+ pages of details about single-point (i.e. lathe) tools. Along the way he gives some excellent information about sharpening. The book is out of print, but worth hunting up.
Try to make a living, not a killing. -- Utah Phillips
Don't believe everything you know. -- Bumper sticker
Everybody is ignorant, only on different subjects. -- Will Rogers
Law of Logical Argument - Anything is possible if you don't know what you are talking about.