Well, the 21^ 3 profile shows the projector has the usual JVC issues, in that it is pre-calibrated to a gamut it actually can't make.
That means some input colours are all mapped to the same output colour.

That's where Sub-Space can help.
https://www.lightspace.lightillusion.com/advanced_lightspace.html#patch_sets

Steve

Yes, I read through this info after you mentioned it on the AVPro webinar. Very interesting approach that I planned to use if I ever attempted to calibrate for wide gamut mode.

But I didn't think that applied here since I was calibrating down to a lower color space.

So subspace can even apply when going from a larger to a smaller gamut?