No worries. Try the adjustment. You can see an overtaking vehicle in the rear view, then transitions to the side view and exactly when it disappears in the side view, it is on your side and you see it in your peripheral vision.
Even something as small as a motorcycle.
I always give the head check anyway, but that adjustment is awesome.
If you do need to back in close to an object, you just lean all the way towards that side, and you can see the front or rear fender.