We adjusted ours today . Tilted it up and the put a traffice cone 4' off the back bumper and put a dot of red nail polish on the screen. This is the blind spot. Next we pulled our car up to the cone. Put a second red spot on the screen. That's one car length so, anthig beyond that is two and the minimum for merging. My next issue is to build a hood yo improve / reduce the glare.
'16 Coachmen Mirada 35BH
Formerly 31FK 15 Grayhawk
Toad: 2015 Jeep Cherokee "The Caboose".
Taking in the sights wherever my Trolley takes me!