Is there a rule of thumb for when a phantom center is better than using a center channel (e.g., if the L&R are less than a certain distance apart)? I've been looking at a new, larger TV to replace the one in this pic, and if used on its stand the center channel will block the screen. The wall that everything is on is only 7 feet long so the speakers are only maybe 6 feet from each other. There are potential issues with mounting the TV, so I'm trying to decide if I should just go with a. phantom center.