Agreed. I understand the power-field argument for loading bass speakers with corners, but with stereo subs, getting them aligned in amplitude and phase with the mains pays real dividends. In other words, treat them like part of the mains instead of like parts of the room.Another tool in the bag is moving the subwoofer(s) in time, physically or electrically. I love my passive-pre integrated amplifier, but the AVR's ability to let the subs grab that free front wall boundary reinforcement AND walk them forward electrically in the soundfield relative to the mains has proven invaluable. It can also help phase rotation a bit when high and low pass crossover slopes are disparate.