I'm having the problem now, too, hstewarth. When I started out with a nice, simple setup, everything worked perfectly. But since trying for something a little more involved, I'm getting eco stuff in the no-go zones.

So far, it's not so bad for me, tho. Maybe that's because I'm only working with small stones and brush, while you're using big trees. Some spill-over is okay in a wilderness, but not in a park or garden setting.

DMM, I'm still lost when it comes to filters. What is a step filter (I can't find any that go by that name)? Also, how do you know what settings in the filters do what? For ex, "inverted clip under 40%". What does that mean? 40% of what? Guess I just don't get along with graphs.

BTW... I'm very happy to finally be controlling terrains, adding features, etc. Thanks to everyone for all the informative posts lately! Cool stuff!