Yes, they do help, but then again you could always look over your shoulder too. 
Most of the time I look over my shoulder but still seem to have a blind spot.Yes, they do help, but then again you could always look over your shoulder too.![]()
:thumbsup: I've had my mirrors setup this way for years and it definitely is the best setup.Honestly, if your mirrors are set properly, you won't have a blindspot. Most of us were taught to set the mirror where you can just see the rear side of the car, and that is wrong.
To set your left mirror, lean your head against the side window and then adjust the mirror so the left rear of the car is just out of sight. Lean an equal distance to the right to set the other mirror.