With the GC box and the non GC box, I would light the non GC box brighter and then do postwork. I think the best compromise if you don't have PP 2010 for GC, and you don't want to do GC in shaders/scripts etc. with Poser 8, or 7, is to light the scene where the image looks somewhat between the brighter looking PP 2010 GC renders and darker no GC renders, and then do postwork to enhance it. But not with levels gamma to 2.2. A mix of some levels and saturation adjustments like I showed above should do it (a lot of the time). That said, I'm sold on PP 2010's GC feature. I plan to get it. It is a benefit, and will cut down on postwork. Of course it's $250 today, so I'm holding out til it's on sale again for $200. (I'm talking about the sidegrade.)