I’ve been adjusting the mirrors on vehicles I drive in this way for many years, but this link describes (and shows) how and why it works so well:
How To: Adjust Your Mirrors to Avoid Blind Spots – Feature – Auto Reviews – Car and Driver

I’ve been adjusting the mirrors on vehicles I drive in this way for many years, but this link describes (and shows) how and why it works so well:
How To: Adjust Your Mirrors to Avoid Blind Spots – Feature – Auto Reviews – Car and Driver