Well, I went back and compared the pre-augmented LUT with the post-augmented LUT. The data points for each were identical in that region above 0.85, 0.85 where I was seeing the clipping after installing the augmented LUT, so I agree with you that there was an error on my end. I'm still not sure where that came from, as the meter remained in place, the TV remained on, yada, yada, yada. But I feel you won't need to take a look after all. Enjoy your New Year's Eve!