Above effect can be achieved by setting brush angle to stroke direction. (I guess that's angle jitter though.) But it's a little bit easier to control starting out if you move the cursor in the intended starting direction a little bit before applying pressure to follow through with the curve. That method works with my low end Graphire 3, so it should work ok with an Intuos and a standard grip pen.

Might be worth getting a pen with rotation sensitivity for doing other things though. Depends on how much line expression is used in your drawing, pressure for expressing line weight isn't everything. I bet it would be a neat feature to expore with the calligraphic style photoshop brushes.

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Barbequed Pixels?

Your friendly neighborhood Wings3D nut.
Also feel free to browse my freebies at ShareCG.
There might be something worth downloading.