Terry Lavin, et. al.,
I don't believe that the greens are kept at 14 on the stimp.
Some of you may recall the study done for the USGA by Arthur Weber, a chemical engineer and golfing enthusiast, that refutes that notion.
Here's the graph presented in Mr Weber's treatise on Green Speed Physics, published by the USGA in their March/April 1997 edition.
Figure 5'
Stimp
Speed 13
At 12
Level 11
Surface 10
9
8
7
6
5
4
3
2
1
0 1 2 3 4 5 6 7 8 9 10 11 12
Putting Green Angle at Which Golf Ball Will Not Stop Rolling, Degrees
At 13 on the stimp, a ball will not stop rolling on a 4 degree slope.
At 14 it's close to a 3 degree slope.
Anyone familiar with the golf course knows that some of the slopes at Oakmont can be significantly more than 3 or 4 degrees.
If one accepts the principle that the USGA/Oakmont is not mowing each green at a different speed, then, the claim that the greens are stimping at 14 or more appears to be a myth, especially when one considers the fall away nature of greens # 1, 10 and 12.
Any ball approaching that green with any forward momentum, no matter how slight, could not stop on that green, if the greens were stimping at 14 or more.
In addition, this study does NOT include the impact of wind, which is significant as stimp speeds get higher.
And, I'm not sure if the coefficient of friction considered in the study allowed for moisture/humidity in the putting surface.