I know this cat has been beaten to death, but I can't find the exact answer to this here or in AVS. For the side surrounds (170s) wall-mounted directly left & right of the listening position and 2-3 feet above the listener, should they be 1) tilted down to the listening position; or 2) faced directly at each other (that is, the top of the speaker forming a 90 deg angle w/ the wall)? My first instinct would say #1, but I thought I read #2 might be better for HT for a more diffuse sound. Am I stupid for even asking this question?