Mike C: I have not been to Pine Valley for several years, so I don't know what management errors they have made to fall back to #2. However, I can hardly believe that they have "abandoned lines of play" as you suggested -- they're island fairways, and I would be surprised if any of the trees have grown into the islands. That may be a symptom of unchecked tree growth at other courses but I have a hard time visualizing it at Pine Valley.
Tom,
Perhaps I should have said "original" lines of play.
Examples of what I'm referring to specifically occur on holes like 1, 9, 12, 13, 15, 17 where original bunkers now live under trees. In the case of 12, even flaunting with the bold play down the left is completely shut down by trees. The left side of the approach to 13 is similarly no longer a valid route as trees overhang and tree growth within the hazard diminishes the formerly spectacular sandy wasteland.
During the Crump Cup this year, myself and another GCA contributor (not who you might imagine) went exploring through formerly open areas like the alternate fairway on 17 and the left hillside on 15 where bunkers have trees growing from them and came to a clear determination that if this was any other course in the world it would lose points because of deviation from it's original greatness of design.
The story of the cleanup and formalization of the sandy waste areas is an even more concerning point that minimizes what was once one of the great unique features of the Valley.
On a personal note, I still think it's the best of the "classic courses", but needing a real restoration effort. However, I don't believe it's the #1 course in the country any longer and apparently others agree.