Yes, I played with the DTE on this quite a bit, can't remember what I did though. And you're right - it only seems to work on world space. I still don't know why the preset (from which this originated) had a thumbnail that looked like a regular spherical shape and pretty much what the name said "supernova shockwave", yet the resultant sphere showed up with a sort of pink slipped disc inside the sphere! Weird or what? I am now playing again, and I've got a totally different effect - again.

Measure your mind's height
by the shade it casts.
Robert Browning (Paracelsus)

Fran's Freestuff

http://franontheedge.blogspot.com/

http://www.FranOnTheEdge.com