I posted a comparison with the latest from @jedsmith here: RGB Saturation Gamut Mapping Approach and a Comp/VFX Perspective - #24 by Thomas_Mansencal
The two relevant images and the blurb:
Jed’s RGB Saturation Based Model - Threshold 0.15
Thomas’s HSV Control Based Model - Threshold & Hue Twist Controls Tweaked
I will continue cleaning up my stuff and add his model in the small framework I built.
Cheers,
Thomas