Thanks all, just thought is was me. 

I heard create atmosphere eats cpu cycles, but I may try it anyway.

I"m not really great at creating additional nodes. I could probably experiment for a year and still not be satisfied.

Not really sure what "inverse" square is, so probably not. ;)

Thanks everyone. I may play with it for a bit more, but it's not necessarily for publication. It's more for inspiration for a chapter in a new book I'm working on.

Thanks again!

Maxx Powr