Now that I have a much better graphics card, I decided to try this again.
This time I scored a 19. Better than the 23 of
last time, but that was to be expected, since last time I wasn't running in true color.
Unfortunately, my CRT monitor died recently, so I can't connect it to the new pc and compare results between monitor types, although I would expect my color perception to be much better with a CRT. I wouldn't get that funny halo, gradient, and wavy line effect that I see on all LCD's.