Thanks on that... As I am playing around more and more, I notice things that make me realize that hdri stuff is just like any other aspect of "Brycing"... There is no definitive or set answer, its all about trial and error, trial and error, and more trial and error :P

And, as always, think outside the box...

Ive been going through the included hdri scenes, and notice HUGE differences in how the sky is set, the materials, and even the type of render... You can just switch the .hdr files and see that theres no way to "pin down" whats going to happen... Or atleast I cant... Yet?!?!?!?

For me, I like the "look" of that image you did w/ the green ball in the knotplot object. I find that the "robot in room ibl9" is the best "starter" scene to achieve that look... Havent completed something serious as yet :P but Im working on it :)

The image here used a setting of 0,40,40, didnt take too long to render, but I didnt achieve the look i was going for.

There are 3 kinds of people in the world. Those that can count, and those that can't..