I posted a map sample over in the Map Gallery.
It was suggested I try differentiating the stream network by using a tapered brush in AI CS2.
Not knowing how to do this I tried adjusting the line weights to represent stream flow.
In the attached fill there is one stream section which is all sized to 1pt - this is on the left. The other section uses different line weights of .50, .75 and 1.25pt.
The questions are:
Is the adequate to represent stream flow?
Are the line weights significantly different enough to actually be discernable when process printed on glossy stock?