In a full field, half a dozen players shoot lights-out every day. In a half-field, only two or three do. Golf leaderboards are exciting because they're bunched, and that's a function of the numbers. With a full field, it's going to be more like the Tour de France — no one usually breaks away from the pack without taking a half-dozen pursuers with him. In a half field, well, Tiger or Darren Clarke or someone else can break away from the field and win in a runaway.
I am sure there is no body of professional games players who so cheerfully know so little of the rules of their game as do professional golfers.