I know what you mean about wanting an indistinguishable version of reality, but you're never going to get that, and will always have to accept a compromise. It really comes down to which compromises you are willing to accept, and our tastes differ.
I think it was Edward Hopper, the American realist painter, that said that opening the window to too much detail took the focus away from the subject, and that cropping pictures tight to the subject communicated the social comment in the painting better than including 'noise'. I think there was something about 'letting in things that don't belong'.
Cables, and hifi overall for that matter, have a bandwidth and roll off eventually. Cables will present the signal differently. Which is closer to reality would be impossible to say because we probably all hear differently and filter different frequencies anyway.
If listening to a live band at a small bar gig on CD, do you want to hear the people talking at the back or do you want the mix to emphasise the vocal and acoustic guitar? Would the mixing down of chatter make the result better? If you are a realist, maybe not, even though it spoils the music. Tough decision. I can see both sides. Everything we hear on CD has been mixed by somebody, and it's their hearing and tastes that are presented to us.
As it happens, my Yellow1 has refined itself this weekend by a large margin and it sounds great and I am at the stage where I am pleased that I have both cables to cover all bases. I'm sure I'm still a way off, but the bass is unwaveringly rock solid and established, although I believe that it doesn't go as low as the grey. It's louder down there until it rolls off, whereas the grey is less emphasised overall but ultimately goes lower.