Megalamuffin
Enlightened
I have broken quite a few McClicky switches. One just last week after a drop. First time I broke one and the light stayed on. Usually they will just stop clicking and become a press and hold, but the light usually still worked. I really use my light a lot though at work and it suffers quite a few drops and flings. The switch if pretty inexpensive, if figure I can't expect it to last forever with rough use. Most lights I tried before Malkoff with McClicky at my job only lasted a couple months.
Do the malkoff mcclickys hold up better than other lights? Never had a problem with mine but it's probably the weakest link on a malkoff. Not counting battery failures.
It's tough to beat the old sf z41 for ultimate reliability.