500T:

 

Neutral Read: 0.289

Neutral Green: 1

Neutral Blue 0.594

Brightness red: 0,955

Brightness Green: 0,91

Brightness Blue: 0,61

Film base color red: 0,984

Film base color green: 0,88

Film base color Blue 0,62

Adjust brightness (80) and White-Point % (1,6) .

 

 

The suggest advanced workflow (preview, select empty space, lock exposure, preview again, lock film base color, preview and select brightest image on roll, tweak the color settings by right clicking a neutral grey, lock image color) probably works better.