ing the course vs carting it. It takes strokes off your game, because you are getting worn down during the course of 18, not repeat that 4 days in a rows. I firmly believe that is why Summerhays has struggled. If you look at his record, day four always seems to be his worst day.
I know guys who have an amazing swing and can stroke it perfectly. Their short game is why they are sub scratch golfers, but put them on the course and walk it and suddenly their game isn't as crisp and they are losing strokes all over the course.