I wouldn't worry about it on a lens that has a good lens profile already built into C1.
Hi,
I'm not so sure that/whether Lens Profiles also cover Lens/Sensor Casts. These are potentially quite different per camera/sensor design, so a generic lens profile isn't likely to cover all use-cases.
Generic Light Fall-off or Vignetting correction might be (but I've not specifically tested for that). However, a dedicated LCC
will cover for the specific application (lens/settings/camera) deviations.
One of the reasons that I mention this is my experience with a(n admittedly but yet practical extreme) Canon EF 85mm F1.2L USM lens on an EOS-1Ds Mark-3 body. The exit pupil of that specific lens is so wide, that the Camera's mirror (in the Up-position) casts a slight shadow at the f/1.2 setting, resulting in asymmetrical OOF blur patterns. I sent in the lens for a decentering correction, but the lens was returned with an 'within spec' qualification (which made sense for apertures from f/1.8 and narrower). Lesson learned.
How this affects Lens Color Cast, is another issue, but most likely also very camera+sensor dependent.
Cheers,
Bart