best bi-wire cables for ref75se/vandersteen 2ci

When I had Vandersteen speakers, I used Audioquest Indigo Blue speaker cables which were like the type 8 cables, only more wires within the cable.  The Indigo Blue had 8 positive wires, all solid core and 8 negative wires in one cable.  At the time (1995) that is the cable Richard Vandersteen  recommended to me for my speakers.

Vandersteen and AQ seem to be well matched. Audioconnection swears by them.
B

Thank you all for your help.
Will stay in touch.