You're missing out on the world of 3D LUT tables. I suggest you do that instead of using the default software by X-Rite. Must more accurate.
Thanks for the suggestion, maybe one of these days I will.
I have done a little bit of reading on look up tables but I haven't committed to it yet, likely b/c of TV (relative) incompatibility. I never really have the motivation for the PC. And I don't use the PC on the TV either. Mostly mid-grade laptops and low grade monitors under lab light conditions.
I agree it doesn't do a terrific job on the automated mode, but it is stupid easy and enough to not kill my eyes at work.
I do want to try this for my home iMac at some point, as I will on occasion use my 43X800D as an external monitor.
EDIT: I will add the link you posted to my post for best PC calibrations.