Yes, it's much more important to be visible, but - as another commenter already pointed out - flashing lights make it harder to judge speed and distance. This e

Yes, it's much more important to be visible, but - as another commenter already pointed out - flashing lights make it harder to judge speed and distance. This effect is even more pronounced when there's a high speed differential, which is why you might think it's OK but pedestrians or drivers who aren't matched to your speed might feel differently (and be right). The best approach is to use both flashing and steady, serving different purposes. Flashing lights alone are not just inconsiderate but bad for safety, especially if they're also blindingly bright (another too-common fetish).