yes and no.
mark the cutoff line at headlight height, and the center of each one
you back up 25 ft and the cutoff should be about 2" below the line on the wall and still centered up. (edit: think it is actually supposed to be 3" @ 25 etc. but I'm lowered so I run a shallower dip, and I can play with my vertical adjustment while driving.)
IIRC
if not here is the link.
http://www.danielsternlighting.com/tech/aim/aim.html