This is where I hear you recommended aiming youe helmet mounted light high, to illuminate further down the road. And yes I know it's higher with respect to the ground, but that's only by about two feet which is insignificant at the distances where the beam hits. Using a headlight equal to the bar mounted light is also the inconsiderate thing I mentioned, and others here have agreed.

Seems like it's the mountain bikers that want the helmet lights and push them. Good for the trail, if you're the only ones out there. Good, stay on the trail with them. Using them on the road is ignorant and inconsiderate.

And plenty here have suggested that the justification for head mounted lights is to flash oncomming cars. Fine, when the light is 200 lumens. Not fine when it's 500 lumens. Soon all bike headlights will be way over 500 lumens and will be in the hands of the ignorant masses flashing them at oncomming eyes. My admonitions are FORWARD thinking. You quote 1500 lumens but have probably never measured anything yourself. Still, your initial comment that "more (light) is always better" is just plain WRONG for ROAD use.

You're obviously a helmet mount, maximum light advocate. I'm glad you took electronics in high school and learned to solder. But ranting away with verbose, belligerant overconfidence in your own beliefs about light and its effects on vision isn't going to change the facts about it. You don't consider alternatives to what's presented to you, however inpolitely, and you'll never change your mind. You should stick to the A&S forum.