Should I bi-amp?

Here is a question I've wanted to ask for a long time. My setup is as follows- Yamaha RX-A3080, with a full 7.1 POLK SIGNATURE system (S60's up front, 2 pairs of S15's for rear and front presence, S30 center, and HTS12 sub). My system is really split between 2.1 channel music, and the full surround for movies. So, even though I think this system sounds quite good, could I extract a little more performance and detail by bi-amping the S60's with the two remaining unused channels on the Yamaha? If so, exactly how would I properly do so, as far as the hook-up itself and the changes in the menu? Really appreciate any feedback.

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