I seem to remember that we have similarly sensitive eyes, based on your posts in the other thread about headlights. I have to agree with you on this one. I can't stand them either.
I'd have to say that I like how my dad's car works. If it gets darker, the sensors in his car will turn the lights on. I also think that DRLs do not help me see other cars better, so they are useless, but in lower-light situations, having headlights on are good, so I like the sensor approach. They are pretty sensitive too. If there is a good deal of cloud cover, the lights go on.
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Matt