Hi TDHarvey;
I refrain from using a putter on the fringe especially when you are dealing with a dramatic elevation change. Its maddening, and I have left several putts on the fringe as a result. Oakmont is not the only place where this happens. KIW, as well as BPB. KIW, #13 left of the flag with an elevation of 5 inches above the cup 13 foot putt. Its a glitch thats for sure, but one that can be avoided. If I use a putter off the fringe I try to insure that the elevation change is at most 1-2 inches. Hope this helps.
Hit em straight and knock them stiff
Infinito