I have been using the Radio Shack, SPST 0.5-Amp Momentary Switch Model: 275-1571 for 2 months in me and my wife's flashlight mod. No problems yet, as I heard that these switches would fail because of the 510 amp draw. My mod uses a single 16340 3.7v battery. Seems like a good readily available switch for mods that don't have much space (it's pretty small).
freqflyer or anyone, on average how long does your switch last?