The picture controls from the Nikonpc.com site doen't fully work as Nikon have set them up too.
That is, if you use any of their PC styles for negative digitization, you can only ever achieve tone reversal on camera, never colour reversal.
Same with using them on Nikon's software, which also use Picture Controls as the intial start point for tone curve. They don't work.
If you have Nikon's ViewNX2 or ViewNX-i installed, they also install Nikon's Picture Control Editor.
This method of editing Picture Controls for use on camera is more accurate, in that as you edit them, that's how they also work on camera.
hence why my disappointment in the D850's digitizer feature mentioned in that 'other thread'.