We DO NOT place wickets at measured distances. Sometimes the course will look downright lop-sided. Keep in mind it's quality, not quantity. We put the wickets in places where, if you over-shoot the shot by three feet, you drop off a ledge or steep grade. We make sure there's a stump in the way, or a stream bed with water in it.
Railroad tracks are particularly gruesome.
Just try to use any hindurance or obstruction to make the game its most challenging.