Around 1,800 UK golf clubs currently use HowDidiDo .
The system counted nearly 4,000 official holes - in - one in 2012 , so golfers have plenty of opportunities to cash - in .
Around 1,800 UK golf clubs currently use HowDidiDo and the system counted nearly 4,000 official holes - in - one in 2012 , so golfers have plenty of opportunities to cash - in .