It could well be that I'm doing NR wrong and if you have any suggestions, I would appreciate them.
Start with this:
Sharpening 40, Radius 1, Detail 25, Masking 40
Luminance NR 40, Detail 90, Contrast 0
Color NR 25, Detail 50, Smoothness 50
Messing around: For more detail, try increasing the first two detail sliders (say, 30 and 100) and sharpening (say, 50-60). For more NR, try increasing L-NR without decreasing detail first.