Thanks for the repost, Robert. I wanted to chime in because of some of these comments. Please know that this was not an endorsement to perform these types of adjustments for all-things-color correction. _At all_. This was merely a teaching tool to show how to use blend modes for certain shots in certain situations. The multiple layers was just to show that adding multiple layers produces different results (with different blend modes playing together to achieve each result). Sometimes when you teach, you have to set up intricate scenarios to show certain concepts. Again, this is a one-off type of thing, but it can be a very cool tool in your back pocket.