i think they used the yale ob/b and yale 028 locks the 028 is a 4 wheel pack ,lot more than the 1 million combo's on the three wwheel packs.
some auto dialers take overnight or more. long time ago they had one that would work in a hour or so,the feds got most of them and i do not recall the name. the dialer left brass every where and the lock was ruined. maybe someone here could remember who made the dialer,it sure ruined the lock.