Pat,
You say "rough is elastic"? It may be if the fairway and rough are the same grass but that is very often not the case. Furthermore, moving hazards is not exactly elastic either. You don't just pick up bunkers, streams or ditches,... and move them for one event, and then move them back. Your, what I call "ribbon fairway" concept, has lots of holes in it.
Here is an interesting excerpt taken from the site
http://www.leaderboard.com/abcs.htm It talks about the difference between course ratings and slope and bogey golfers vs expert golfers. It is interesting about the statements regarding fairway width
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"Can you give me an example of how Course 3 can have a lower rating but a higher slope than Course 1?
The thing to keep in mind is that the challenges a course presents to scratch golfers are usually different for bogey golfers. Take two identical courses and call them Course 1 and Course 3.
Each course is situated in wooded land, such that all fairways are lined by trees.
Now let's make these courses just a bit different from each other:
On Course 1, we'll cut the trees back from each fairway an additional 20 yards on either side. On Course 3, we'll widen the greens 10 yards in each direction.
What happened to the scores?
Well, the expert golfers turned in better scores on Course 3 because they know how to take advantage of bigger greens and they are also pretty straight hitters, so the woods were not really a factor for them on either course. Even so, the expert golfers know how to minimize the damage to their scores after an errant drive.
But the bogey golfers aren't so fortunate. A much greater percentage of their drives ended up in the woods on Course 3 and (once there) it was more difficult for them to get out of trouble. So by the time they reached the green, their scores were pretty swollen to begin with.
Ask the bogey golfers which course was more brutal and they universally responded that Course 3 was the most difficult because the fairways were less forgiving.
Ask the scratch golfer that same question and the response comes back, "Course 1 was more difficult... smaller greens."
Mark