B&W speakers running on Mac 4 ohm taps?

I have another question in line with this discussion. With a 6 ohm rated speaker having separate bass and m/t connectors and using a mac amp can one use both 4ohm and 8ohm of the mac in a true bi-wire configuration. Such as hooking the 4ohm to the bass unit of the speaker and the 8ohm tap separately hooked to the m/t unit of the speaker.

Elizabeth

So based on your response I should use all four separate cables on either 4ohm or the 8ohm taps. The cables come as 4 individual strands not shotgun configuration.