Plus, by hole 15, a player is usually starting to get a little tired. The heat combined with the torque on the joints and muscles with a swing that isn't natural just naturally wear a person down. Then, you come off a long par 4 at 14, fight 15 (as you mentioned), 16 isn't long but plays against people who fade/slice and there is a lot of trouble to get into, and then a long par-3 over water. #18 finishes with a long par four. While I haven't played it, I can see where this is definitely Grumpy's Revenge.