Hi Chris, thanks for coming back as it's good and healthy to have exchanges like this as we can all learn from each other I feel.
The blue, I'm not sure, here is a RP without the blue and a slight control of contrast that LR likes to include behind the scenes for comparison. I do agree on keeping ISO down as it also retains the Dynamic Range, (interesting after a comparison testing to see the D850, D810 and the D800E all having very similar results), but I would trade a slightly noisy image for a hint more DoF personally
. Perhaps the impala just needs a little more selective sharpening with hindsight, WDYT?