OpenTrackRacer, I have been caving with cool whites for years. The cool tint never bothered me until I started caving with those who had neutral tint lights. It was frustrating to see their lights render up-close objects so beautifully, and then for me to look at the same thing as if I were looking through a boring, blue filter. Still, it didn't bother me much, most of the time. However, when I finally decided to pull my own trigger on a H600, I went for the neutral version because I didn't want to be jealous of another caver's tint anymore. Most of my motivation behind getting an H600 was to make other cavers jealous, and it simply wouldn't do to still have the issue of being jealous of neutral tint lights.

I'm very happy I chose neutral, because now everything seems more realistic... less hostile even. I find myself enjoying the underground views more. Also, you wouldn't believe the psychological difference it makes for me when I'm underground, especially in particularly wet/cold environments. Inhospitable is now somehow less inhospitable. Really,
really cold is now just really cold. Of course, it's quite possible I'm just crazy.

Anyway, yes, a cool white will reach a little farther than a neutral, but keep in mind that the H600 isn't much of a thrower anyway. I can see far, but... I always wish I could see farther. That's an H600 issue though, not a CCT issue. I would like to see in person the difference between an H600 and H600w underground, but I'm almost certain I'd still prefer the H600w. There, that's my two cents for the day...