I need to apply the stroke path tool with a huge brush. As a result I have a very bad boundary of a shape I gain. Is there a way to solve this problem? I think, my question is very similar to http://forums.adobe.com/message/6116197#6116197
Here is the illustration. Black line is my path. Rectangle is my brush and the blue shape around the line is the shape I gain. Brush height is 1000px.
In th Brush Tip Shape section of the Brush panel, set Spacing to a very low value (<5%).