Gorilla was correct with the distance and height. That 25 ft is an important measurement, HD says 25 ft to the front axle. The height is also adjusted on the low beam led light.
I am sure having 2 up could make a difference. I made sure the air pressure was accurate and had the wife on the trike in the riders seat, not the passenger seat as the trike supplement states.
I refused to buy a 100.00 socket to adjust the passing lights. I made my own special socket. A six point deep thin wall socket and a hand grinder and a few minutes and I have a socket that I will probably use 2 times in my lifetime. Jim