Master key systems, when implemented by the wrong company, can be extremely complex, confusing and frustrating. For example, we recently worked on a church in Cartersville, and I could kind of see the early signs of what I call the master key system haze. Confusion had set in. But most importantly she had at least figured out what employees were going to be given access to what areas at the church. Which is extremely untypical by the way. Master keyed lock setup Master key setup is the mo...