Mike,
Interesting to see you made the trip to Tufts.
The old Ross sketches and drawings are very interesting. The Tufts Archives (Kristine Januzik & Audrey Moriarty) have done very well with a little help from friends.
It seems many well informed folks, even THE 'posting' cognoscente at at this site, have no idea of the wealth of Ross' architectural records that still exist and are housed at Tufts.
Tufts has made a substantial effort in digitizing many of the records, and believe they are now up to the large format golf plans. {
www.tuftsarchives.org 910-295-3642 }
As to Mid Pines, the 4th is wonderful. The hole is a short, uphill dogleg right that you can almost drive. Often the closer you get, the more difficult the short pitch to the green.
The stretch of holes 1-4, and 10-12, along with the 18th are my favorites in Pinehurst area.
Tomorrow, check your email for a 'fab' drawing.