When to use cordless bowling alleys and when cord technology bowling alleys?

Where there is no prerequisite for organising official competitions and tournaments where the rules require cordless placing of pins,
we recommend cheaper and easier to operate cord technology of placing pins. The main difference between the two types lies in the way the pins are placed. The other parts of bowling (alleys, scoring system) are the same both for the cord technology of bowling alleys and for the cordless technology.

In practice, smaller centres with two, or, as the case may be, four alleys, are mostly equipped with cord technology, centres with six and more alleys are then usually equipped with cordless technology. (Thus they can hold various tournaments  here as well, or contests at the international level.)

More about  bowling alleys with using cordless technology on the previous link.