I recently went to a dynamo system and am looking for advice on properly aiming the beam. I have the B&M Luxos B. These light have a fairly sharp horizontal cutoff - about how far away do I want to aim cut-off this for optimal lighting but yet not annoy motorists and pedestrians?

Right now I think it's a little low since the cut-off precludes seeing stuff 100+ feet away, whereas my old battery light was rounder and I had more early warning.