Made a new tutorial using Davinci Resolve to de-Squeeze 1.15 anamorphic from the Freewell wide angle lens. This one is perfect and easy. You can even make presets for 4K and 1080. I wasn't happy with my original tutorial and will soon delete it. I originally used the transform tool to adjust the squeeze. And it works fine, however, if you do any zooming, it doesn't maintain a linear aspect ratio even though x and y are locked.
Yes, I actually use it more than I would have expected. I have the kit , which includes the ND filters. Filters are great, but difficult to handle. It would have been nice if they made a special pair of tweezers for handling the filters.