The 'adjustment' was to better set the blacks 'clip point', and correct better the initial over-bright response of the display.
I made no attempt to set the colour temp, beyond that of the display's native setting, as the LUT will do that.
The extracted colour space is then matched to the underlying setting of the display, to see how well it 'maps' to itself.
All that has nothing to do with the large profile performed, and the LUT generated from it.
That is totally separate.
The 'mapping' the display to itself is just a check to see if there is anything screwy with the display in it's native state.
Mob Boss at Light Illusion