I too suspect that there won't be much if any difference. However the various versions of the Canare star quad cables have significantly higher capacitance than Mogami 2534 wire which is used in Mogami Gold Studio cables. If you will be using a preamp having particularly high output impedance at high frequencies, now or in the future, it is possible that the higher capacitance of Canare could result in a very slight rolloff and/or undesirable phase shifts in the uppermost treble. Given the 6 foot length I doubt that these effects would be noticeable unless the output impedance of the component providing the signal is extremely high (e.g., considerably higher than 1K), but perhaps these possibilities can serve as tie-breakers :-)
The lowest capacitance Canare star quad model appears to be the L-4E6S (150 pf/meter conductor-to-conductor and 185 pf/meter conductors-to-shield). Other models are somewhat higher than that. The corresponding figures for Mogami 2534 in balanced quad configuration are 97 pf/meter and 110 pf/meter.
FWIW I have used Mogami Gold Studio with fine results (driving it via low output impedances), but I have no experience with Canare.
Regards,
-- Al