I split print using hard blue and green filters. You can do every grade with just two filters that way. When I want something simultaneous, I just use a colorhead. But frankly, I don't give a damn what grade number it hypothetically is. Back when I did almost exclusively print graded papers, my "normal" was Grade 3. I miss some of those classic graded papers, but since then variable-contrast quality has risen dramatically, and for most purposes equals the final image quality we had before, and in the realm of convenience, exceeds it. Negatives which once gave
me hell to print are now easy.