I am just installing dual wipers now. After consulting with Wyrguy I went with a double pole double position switch so I can run both wipers and use the 2 speeds. The way it is wired to the switch each side of the switch is independent from the other side so one wiper could die and the other side would still work. Only down side is I can not run each wiper individually however I didn't want to change the size of my panel at this point and think for the majority of use both wipers will be required.