I apologize it that explanation sounds confusing. Perhaps some pictures would help?
Okay, here you can see from left to right - XHP HI - Mk III cool white - Mk II L2(w) neutral - SC600 Mk I Original cool white. Now let's turn these around and look at the other side...
Can you see the difference? These lights are all in the same order, they have just been rotated 180 degrees. The 3 lights on the right, despite their difference in size all maintain virtually the same aspects regarding the positioning of that little nub and its lanyard ring. But not so on the 4th, the one on the left - the Mk III HI. Therein lies the rub! That little nub was moved! And that's why it's feeling different, ergonomically speaking.
On the 3 previous incarnations of the SC600, it was absolutely ergonomic perfection for me and my Pinkie Lanyard. Now, on this HI version, I can only vouch for near perfection - not for absolute perfection, as it was in the past. And, at least, now I can appreciate that there really is a physical reason it feels different and why I have to rotate the light ever so slightly to position my thumb on the switch. It wasn't all in my head, after all!
If you have the High Intensity Mk III and any other SC600 Please compare them and let me know what you find on yours. Is my HI just a fluke? Or are all of the HI's made with this subtle difference regarding that little nub that annoys many and others find useful? I would be curious to hear what you find.
My mk3 hi has the lanyard directly opposite of the zl logo like your other zl's. Very weird. If it bugs you that much, I'm willing to trade. I don't use the lanyard anyways.
Ok on closer inspection, it is not exactly 180° behind the zl stamp... but close.
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