Hi, when I´m using my automatic wipers and it is heavy rain, the driver side wiper sometimes hit the A-pillar. This happens maybe on every third wipe or so, and I can hear it hitting. And it seems like it never quite wipes the same area, sometimes it doesn't go back down all the way either. And when the wipers are resting in the downward position, the one on the driver side stops before it goes all the way down, but when I turn the wipers of it goes down the last bit and rest atop of the passenger side one. Maybe this is a feature? Anyone know anything about this?