Hi Ryan. I started to use V6I for my furniture model product pictures for C3D, and then did make some comparisons with V5I, since I still need to make most of my products in V5 file format. After making a few comparisons, I doubt I'll ever go back to V5I. Unfortunately, I didn't keep any of those experiments (didn't think anyone else cared), but for architectural purposes (in my case, furniture and special rooms to take advantage of radiosity lighting) V6 has it all over V5. IMHO, only.