We wanted to bring Donald Ross to the people. Soon afterward, the Donald Ross Society was formed and the architect's profile soared. The thrust of the society was to protect and preserve the integrity of Ross courses, many of which were being renovated or had fallen into disrepair. On the whole, the attempt to replicate the holes is a success. Obviously, not all are accurate in all respects.
Elevation is one problem.
An example of that is the 12th hole at the Memorial, which is a copy of the par-3 third at Detroit Golf Club's North Course. The green at DGC sits atop a hill. There is no such elevation on the Memorial. But for every aberration, there are several cases where the replication is close. And when that fails, the feel and sensations reflect the originals.