I watched Back to the future 1 and 2 on UHD yesterday. I used JRiver's in-house scaler the whole time. With Back to the future I had the problem that the image was too dark in some scenes (it somehow looked like a dark veil over the image). Now I installed MadVR in the latest beta and used your settings. The same scenes that were too dark in JRiver look great here! The only thing that annoys me is that the rendering time is much longer than with JRiver. I have around 28ms. I use a 4060TI. But I didn't notice any jerks or anything like that. Everything looked very good!