Thanks W.C., I think I hear what you're saying--i.e. that if I didn't want a convex profile, I could have ground more of the area halfway between the tip and the side of the flute. What I did with the 1/2" gouge was to take off the corners at the top, then simply grind it until I got a consistent edge. At that point, I had my edge and it happened to be a convex profile, and to be honest I was tired of grinding. The more I think about it, the more useful the convex profile seems. Obviously I'm a rank newbie with all of this so when I get a few more bowls to my name maybe if I'm lucky I'll have learned a few things.
I sure appreciate all of you guys taking the time to help me yesterday. Now I'm gonna see what kind of trouble I can get into today.
Mark