The fork mounting isn't a problem for traffic or beam or pavement irregularities. Many cars turn off their brights when I am coming towards them with the E3. The only problem I have with the fork mounted headlight is the shadow it casts on the opposite side of your wheel. This isn't a problem on the road at night, but on a bike path or on a trail it means the light doesn't go where your turning (in the case of a right side fork mount this means left turns can be a little blind).