Ok so here is my living room, quite bloody awkward. Out of the numbered positions (in red), which one shall be my main listening position to use for the microphone? I have 6 positions max that my audyssey can process. I was thinking of using 3 as my main listening position for the audyssey as it was between both couches. NOTE: Both couches back onto walls. So which one shall it be? Or shall I have a main listening position in either 4,1,3,9,6 and put the mic in all positions (max 6). Thank you for your help.