Boston, MA
Quoted from frunch:They're used to help particular switches sense quick closures. Some switches may seem intermittent or unresponsive without the cap installed. Most of the time i see them on rollover switches and standing targets. I wouldn't add them to switches that don't have them unless i exhausted every other solution. Have you tried cleaning and adjusting the switches you're having trouble with?
Well answered. My classic example is the 8 Ball target in 8 Ball. If fast hits are not registering, but slow ones are, it’s obvious the cap has a broken leg or something like that.
