There are three scatter distance plugs on the Physical Surface. R,G, and B. The penetration distance is in millimeters if I recall correctly. Poser is not open ATM. Just don't set the three plugs to the same value as there used to be a bug that cancelled the effect if they were set to the same amount other than zero. Again, Poser is not open this minute to check to see if that bug has been squashed yet. I'm sure I gave more detail to this answer when you asked at another forum.