The Knoll hole, SPBD, is Macdonald. I sent a picture of Piping Rock-13 to Scottscraig where the original is after Gil Hanse told me of the origin along with a letter. They were astounded at the similarity. Their 4th was the feature hole of their yardage book - they are near identical.
So I can't see how SR could have done it on his own without seeing tghe original zand they had never built one before (this, Piping Rock, the second course after NGLA).
These are very interesting short-4's, more highly elevated than a "Short" (like three times higher), with a back plateau, and a terrible falloff over the green (many 14-ft+) - so with a back pin placement, even though you can nearly reach the base of these greens on the tee-ball, the short shot can't be flown on to the back level and must be trickled up over the rise landing on the main level. If you think you'd rather lay back for more spin, that is just as difficult.
Neat hole, generally around 315 to 350 yards.