Thanks for this Don, I am switching over to a scope screen and this looks like a great masking system.
Great! It really has worked out well.
Since my post, I have integrated into my Control4 System, and have my theater configured using the madVR Envy such that after a movie starts, it automatically moves the curtain to the proper position based on the Aspect Ratio provided by the Envy, and communicated to Control4. It's really pretty slick.
Feel free to PM me to explore any details on this, limitations, etc. And I saw elsewhere that you're considering adding a Lumagen to your theater, which is a great product. I think it makes sense to look at all available options in this regard, with the madVR Envy worth a look. I was making the same decision about a year ago, and decided to go with the Envy, and am still very pleased with the choice. This says nothing negative about Lumagen, since both are great products. And it's always good to have choices.