Paul Cowley,
I don't think anyone in GCA is particularly concerned about protecting "par". I certainly don't care if good players are shooting 65 or 75 on a given course. What I do care about protecting is the strategy and interest, and like it or not, in my experience courses where there are lots of 65s being shot tend to have less of that than courses where 75s are being shot. There's always going to be great rounds on great courses, and that's fine. But when there is little demand off the tee other than bang it out there somewhere findable and hit a wedge, it is mostly a putting contest and I'm sorry, except at ANGC and a very very very select group of courses around the world, a putting contest is not interesting to watch and really not a whole lot of fun to take part in.