[michaelt]

With traditional safe combination locks, it's kinda normal for them to be spun fairly fast.

Often to enter the first digit you often have to turn the wheel four full revolutions, the second digit three full revolutions and so on. So users will be trying to spin it pretty fast under normal operation.

Of course there are other solutions to autodialers. For example, making sure burglers can't spend 3 days with the safe waiting for the autodialer to run.