Anyone here on the forum with experience with driving at night with those yellow-colored glasses ? Do they really give you a sharper image ? And what's the effect in night-time driving in the rain ? Anyone who has the clip-ons for putting on your regular glasses (I am a prescription glasses wearer) ? If so, what make do you have ? Or, does anyone know of manufacturers of such yellow visors, to replace the sunvisor (not the main visor) in a BMW System 7 carbon helmet ? Particularly interested in answers from Europeans...