Yes, I’ve just realised that, hehe. Is there a reason why these points wouldn’t have been simplified using the Raycast Modifier?
https://i.imgur.com/uPCKIz5.png
The only thing I check for collisions with is walls, of which there are none.
I reduced my Pick Next Waypoint Distance from 10 to 5 which also seems to have helped. Though I’ve just looked up the documentation for erosion (and seen this forum post) and that seems like it might do exactly what I’m after.