Not very major changes, kayjay. The quote from Blackhearted in the conclusion of Part 3 should read, "a slight noise filter" instead of 4%, and continue to explain that it can "add detail and break up the large areas nicely." I also added a quote from CIM_LW in part 1 that's a more simplistic explanation of GI. I thought it would be good to offer his thoughts, as mine got kind of cumbersome, and it helps it flow better to think of it the way he stated it. ;) Glad to help.