when we first had our Saf-T-Plus installed, we left and it was pulling to the right. We turned around, went right back and they didn't want to believe that there was anything wrong. We told them we wanted them to drive it with DH onboard. They drove it 5 miles on the x-way and also turned around, came back and made an adjustment to the installations. So - what I am trying to say, it is possible that they are off a little as far as where center setting is on the installation. If your steering wheel is off, maybe that has someting to do with where it needs to be set also.