@Ray D'Vecta
Are you sure about that? I have been based at Schiphol for over 10 years and have never ever had one of those!!!
They might offer you a switch from 18R to 18C, but it is NEVER a visual switch, and it NEVER happens less than 20nm from touchdown. They ask if you would like 18C instead of 18R, and if you say yes, they vector you for the 18C ILS.
Perhaps your are just unlucky! Visual or Radar it does not seem to matter, you only get it if you are painted the right shade of blue
