The USGA Handicap Manual is based on a couple of premises. One of them is, "... that each player will try to make the best score at every hole in every round, regardless of where the round is played ..."
Golfer Z plays an equal number of casual rounds and handicap tournament rounds. When he plays a casual round he is not too concerned with his score. He follows the Rules of Golf but he doesn't grind over every hole and shot. He never tries to make a high score but he may take chances even though he knows the likelihood of a good outcome is very low.
When tournament time comes around Golfer Z grinds. He plays smart and doesn't take low percentage shots. Every stroke is important.
At the end of the day, he has a 10.0 to 12.0 handicap index. The average differential for his casual rounds is 4.5 strokes higher than his tournament rounds. He doesn't shoot net 58's but he is very competitive against the field in almost every event.
Is this guy a sandbagger? Why or why not?