I heard some info about hooking up a 522 to a DP Quad from a tech. To avoid problems, I was informed to hook the two lines going to the 522 to ports 1,4 or 2,3 (as opposed to 1,2 or 3,4). If using a DP Twin with a 34 Switch, use the same sequence for hooking up to the receiver ports. Can anyone clarify this? What is the reason?