The new one that I opened didn't have any extra lube on it. I've come across some of Lysol's old posts saying that all the MX switches come lubed from the factory so I'm not sure if the Whites have this typical lubing PLUS the supposed lube that an MX White supposedly has. If I were at home, I'd open more Whites up to see if they have lube on them.
I recently opened about a hundred (new) whites and they were all lube-less. It seems safe to say that they're no longer pre-lubed, even if they once were.
So what was the difference in the ones that had varying clicks?
If I remember correctly you posted that about half of yours had a different click sound.
Yep, about 45 with a hard, mx green-like click, 45 with the correct soft click, and 10 with no click at all. I spent some time comparing all three and found no noticeable difference between the three. (I don't have any tools for precise measurement, though.) Thechemist also believes that the bottom housing has something to do with it, and that replacing it can sometimes change the click; I was able to confirm this to a small degree, but nothing dramatic changed using 5 spare bottom housings on a clicking, soft-clicking, and non-clicking white stem/spring.
That's why my current theory is that it's black magic. (Clack magic?)