With my helmet light -- which carries major lumage -- I just look up a little bit. It is easy to shoot over a car or truck and still see what's going on.

I also have my light mounted on a homemade mount (actually, recycled and modified handlebar mount) that let's me angle my P-7 up or down with easily on the fly. I can do that, if need be, but I've not yet had to do so.