Originally Posted by littlewaywelt
Does the mirror give you the ability to judge how close a car is going to pass, and do you have enough time to adjust accordingly?
I spend a mile on a rd where I'm doing 20 and being passed by cars doing 40-50mph
It took me a little while before I could consistently judge the closeness of a passing vehicle with my mirror. Any repositioning of the mirror will also throw your calculations off. Using a mirror gives you MORE time to react or adjust to an over taking vehicle, not less.