I am not sure it is worth the price but Fractal Expression has wonderful tools
to make pen lines thick to thin. You can download a demo from their website. I
also thought illustrator was difficult to control for lines like these.
Learning Resource Center
University of Michigan
Chris Gralapp wrote:
> Recently as I browse around I see interesting little spot illustrations in
> magazines, etc., that feature thick and thin lines that are obviously
> digitally made in a vector program. I really want to do this, but I'm using
> Illustrator 7, and it seems unnecessarily difficult to do, with doubling the
> lines and getting them to join, etc.
> I know there is a paintbrush tool which has pressure sensitivity and can
> sort of do thick and thin lines, but it seems hard to control, and sort of
> klunky--too many uneven edges.