I examined my first negatives with the 'new to me' Fuji 300 and the edge-to-edge evenness is excellent. That was what I was looking for (expecially after examining John's books by Michael and Paula.
In the center not as sharp as the Symmar-S 210 I am comparing to, but that Symmar-S is a 5x7 lens, so it looses some resolution at the corners of an 8x10 frame.
That fits with the resolution tests on the internet. It seems the other big 300mm plasmat lenses in the Copal 3 shutters are in the 45 LPM range (at working apertures) right with the Fuji. The advantage, of course, to these big lenses is the large image circle, allowing full movements.