I will try your suggestions Gregg and report back, thanks.
I have noticed this occuring with another users measurements posted over at Contolcal, he used HCFR for which i also have data from the same calibration time as above, the Gamut readings are almost identical.
Settings and readings are below if you don't mind having a look please...
100% Y 30fl target
1080p@24 REC709 (panel set to input 4:4:4)
Source - Sony s760 (1080P24 4:4:4)
Gamma 1-9 (all 0)
G -2 (set as created best greyscale baseline to adjust RB to fit)
G-H -1 (required to fine tune greyscale)
G-L 1 (required to fine tune greyscale)
Now everything is in context. Compared to the five other colors, blue stands out as the highest, yet is right at dE 3. That is normal on the Kuro. Nice combo on the CMS. As has been pointed out, you may get better tracking by setting those controls at zero, but that is not an absolute. Some of the Kuros require CMS settings similar to yours so your numbers are ok if you find no real improvement by resetting your CMS values to zero. You color setting is also fine. No need to change that setting.... unless you drop it by 1 click.
BTW, Kuros perform best with an RGB 16-235 signal. Unless your Sony is incapable of properly sending that type of signal to the display, I recommend you use it.