I have pretty much decided on getting a 7.1 system using Axiom speakers. None of Axiom's surrounds are direct radiating, they are either bipole or quadpole. My question is; Their surrounds seem to be designed for 5.1 systems, would having two sets of quadpoles in a 7.1 system muddy up the soundstage or make it too unfocused? If so, which alternative would be best? quadpoles as side surrounds, and small bookshelf speakers as rear surrounds? bookshelf speakers as side surrounds and quadpoles as rear surrounds? or.. bookshelf speakers for all surrounds?