Thanks for the suggestion. I turned down my contrast a few clicks and compensated with an increase in backlight. The gamma now tracks as it should. I'm surprise the color readings drifted more than i thought. I had to tweak most of the color adjustments again to get back to correct color readings.
This. On my personal TV, the gamma doesn't level out unless the contrast is at 78 (or below...the control goes to 100) even though the contrast pattern looks correct through the 80s. Clipping/colorshifts start in the early 90s