I recently realized that the Angle Increment control in the Path Angle control panel was not doing what it was supposed to in Particle Pen Mode. It's now fixed in the version 4 development builds, so something to look forward to (among many things).
For those of you not familiar with the Angle Increment control, it quantizes the computation of the current path angle over time. So it it's set to 10, then the path angle would only be recomputed every 10 path points as opposed to every path point.
It's really useful in situations where the natural path generation might circle an attractor point as opposed to moving off into the image, by increasing it you can get it to overshoot the attractor and move around more. It's also useful for creating jagged random walk paths, since the path will be straight for all the path points where the angle is not being recomputed. As always, trying different values and seeing how it affects auto painting is the best way to get a handle on what it is doing.
"Ok, so your PASeq preset really just is using one paint action step.
So when you go into the paint synthesizer, you can see that it's using path start regionization. The path start generator is the Watershed DM, and the Path type is Path Start…"