Funny/luckily enough I had the same question.
The outcome of double strands per channel is increased dynamic especially in lower region of spectrum and better PRaT. The difference betwen Claire and Noir is sleeving and type of braiding. The 4x2 in Noir is better in reducing EMI and crosstalk, hence it preserves details in recordings better and creates wider soundstage."
Straight from the man himself
Just like when I changed shoe laces on my running shoes today! My step pace intervals improved drastically, I had much more of a soft oomph in my shoe-to-ground impacts! I'd say I also felt a sligt improvement in L-R-foot dynamic movement! All in all, they really made my running a much more pleasant experience!
Naah, but they kept my shoes tied and they look nice