Just realized that I have not finished this thread.
I exchanged my Katz screen with microprisms for a pain Katz screen with optibrite treatment.
The new Katz screen works great.
Was it worth it? For me, yes, because I now have a properly adjusted focussing screen and can use my manual focus lens much better. My wife also has a D200 so I can compare the Katz screen to the original Nikon screen. The Katz screen with optibrite treatment is a little brighter than the original Nikon screen.