But ok, since a while AI has introduced the fabulous Width Toolto interactively make varying stroke widths.
There are also some presets for varying stoke widths.
Once in a while I like to change the direction of the width envelope, and I was thinking that the change path direction buttons in the Attrubutes panel would do. But that does not work for non-compound paths. And once I choose to make it compound, the buttons are active, but still do not allow me to change direction back and forth.
The only way to change path direction for a single path is to mess around with both the fill toggle-button and the direction buttons.
Wouldn't it be nice when the path direction buttons do what they promise? For bot compound and non-compound paths. And let strokes with a varying width react to the path direction.
SoHere the same story, Illustrated:
A stroked path with varying width, non-compound: the direction buttons are unavailable
2 & 3
Made it a compund path, buttons are available, but do not have any effect
Messing around with both the direction buttons and the fill toggle has the effect I was looking for: the width envelope of the stroke is reversed