If on a bike trail, I would try to point the light lower. If on the road, I wouldn't worry. I ride with two headlights, one which is on steady and pointed down to illuminate the road in front of me, the other on flash and pointed straight ahead - that one is to make sure that oncoming traffic is aware of me. That said, I only have a very short stretch of my commute on a bike trail, most of it is on the road.