Just upgraded my air ride bags. They were old and a couple of them were leaking. While talking to the guy at Air Ride Tech, I mentioned that my tires rub sometimes when going kind of fast around a corner. He asked if I was using 4 or 8 valves. I told him 4. He said that the air will shift from one side to the other if only using 4 valves, allowing the car to "lean". He recommended using 8 valves. I didn't think to ask about the switches. I hate to use 4 switches, 2 for up and 2 for down. I'm sure one of you guys has figured a way to use only 2 switches, probably by using some type of relay. HELP!!!