I know it’s an old thread but I’d appreciate a toolset workflow like in Sketchbook pro, they probably have the best ellipse and curve tools. Only because my tablets accuracy doesn’t work well with my own ellipse guides and rulers, has too much of an offset (despite calibrating, I suppose it’s not as accurate as a wacom).
I don’t think that system would get in the way too much but I understand being hesitant. Maybe down the line after the brush system is created.