Mr. Bausch
The charge given to the Nicklaus organization at that time was to oversee the reconstruction of the existing greens to a new USGA profile.
It was a complete profile, even with the 2" choker layer, that is often eliminated in today's USGA construction.
Although we identified several areas where the greens had shrunk in size, only a couple of instances was the existing green enlarged, primarily where we thought it was obvious that a pin placement had been lost. I specifically remember the 3rd green toward the back left green section being such an instance. But primarily, our charge was to duplicate what was there. Thus, Ed Connor was hired to map the greens, as existed. This was not a renovation or restoration project, per se. I was working on the Pinehurst National course, and Pinehurst just asked Nicklaus organization if I could spend some time while in Pinehurst to oversee the work. Kocher's crew did the construction. They brought in new bent grass in refrigerated trucks, and the laying of the very thin layered bent sod was a site to behold at the time. Using plywood, they layed the new sod out and it was darn near puttable with the seamlessness of their application. It was impressive.
In regards to your comment about the tie-ins around the green, yes, we did float the edges to properly tie in with the surrounds, but we did not modify on purpose any of the existing green elevations or the surrounds. We were not there to change #2 in any way, and we did our best to only replicate (with minor surface drainage problems corrected) the existing greens but with new USGA profile and new green turf type.
That's about all I recall, hope it helps your understanding. I can't speak to the later renovation work.