My understanding of the proper way to maximize noise reduction is to wire both blue together and both whites together. It is the twists in the pair that reduces the noise. Separate them and you negate this.
All I could find as yet but doesn't help a lot because that has four colours!
My understanding of star quad operation is that in any given run there is a more even common mode current induced into all the wires and that gives greater rejection.
However, I confess I have never wired any SQ cables nor had one apart for examination. Rest assured however. I SHALL find the definitive answer!
Oil be bek!