Confederate wrote:
False master pins? What locksmith on earth would use unneeded pins in an attempt to thwart deciphering? That would just result in more keys working the cylinder. You're out of your mind if you think adding additional master pins to thwart deciphering is anymore safe or helpful than adding extra keys that unintentionally will work it as well.
If the key system is small enough and well below the capacity of change keys that the design can provide, adding false master pins don't affect it.