thanks guys!
Took camera up a little for a different POV. I am right at the fog edge and still MPD0.6 and AA6. GI voxel 100. I am seeing a little noise.
What setting do I increase, decrease to reduce that? Still using path tracing robust , detail 1. Cloud quality Still medium I think.
I have a ground level one rendering ETA 1 more hour. ha! Averaging 3 hours at these settings. 1600x1000