Ed Getka,
I was refering to the elevation change occuring in front of the green.
For example, the 2nd green.
The second green flows down, off of a knoll, with a fronting trough leading ever so subtlely uphill to the front of the green.
Shots hit 5-10 yards short of the green will get the TEPaul turbo boost onto the green, shots hit into the bottom of the trough will probably bounce onto the green. Shots hit 2-3 yards short of the green will stop due to the subtle uphill slope fronting the green.
The 12th hole has a similar configuration, but the scale is vastly larger.
Two similar principles, one large and obvious, the other small and almost imperceptable.
The beauty of these elevations, is their effect on approach shots, especially with varying hole locations.
For example, on # 2, with the pin near the very front of the green, a shot his 5-10 yards short, will catapult to the middle or rear of the green, and a shot hit just short, will stay there, just short of the putting surface.
This subtle feature makes the approach shot infinitely more difficult when the pin is in the very front of the green, and can aid an approach shot when the hole location is middle to back.
The same principles apply at # 12, except that the green continues with the pre-green change in elevation.
Approach shots hitting the front of the green often roll back into the bottom of the fronting trough, shots hit at the very bottom of the trough will bounce up, only to roll back, and shots hit 10-20 yards short will roll up onto the green.
These are holes, amongst many others, that you can learn to play with great variety in your approach shot selections, multiplied when the hole locations change.