PPallota,
That goes to show that shot values are somewhat subjective, no? Some would call the recoverable course better in shot values, a few would say the non-recoverable course has higher shot values.......
I know we have covered this before, and I have written my definitions, which, as per above statement might amount to a hill of beans to many. I think that one line definition Jason quotes from the Cornish book may have actually came from my mentor Dick Nugent. At least I know he had a similar quote in the book, perhaps with the phrase "how it metes out punishment" worked in there somewhere. I never thought it was enough, and tried to write something down to better clarify that years ago.
It is along the lines of words here, but I don't recall it. It seems to me it is a combination of both the variety of shots called for, how well the golf course accepts those shots, and how much the golf course punishes them.
For example, if a hole calls for feathering a butter cut mid iron to the back right pin, is that not the same shot variety value whether the guarding bunker is 2 or 20 feet deep? To me, the shot value is the same (or maybe not, once you figure in fear) and what would make it different is:
*If the wind fought you or helped you - i.e., can you aim over the middle of the green, or with the wind, do you have to aim over the hazard (worse if its water)
*The target area was smaller than you could normally expect to hit with a mid iron.
*Whether the green contours give you any help at all, or if they reject the shot.
To me, if those aren't in line, and the target isn't very attainable, then its a poor shot value even if the punishment is benign.
Over 18 holes, there should probably be a mix of suggested shots (we can't require a fade, only provide features that make it a higher percentage shot). There should probably be a mix of hazard types and difficulty, too.
Both of these are predicated on the idea that we are trying to give each skill set (length/accuracy/finesse) some hope in competition as well as a mixture of challenges. And, of course, its all things being equal - no sense trying to force a feature against the land, and nothing wrong with a course slightly favoring some type of player, but I would argue that balance is an ideal worth shooting for, again, all things being equal.
We could do the same analysis for hazard difficulty. What is your overall premise? That a shot missed should be a shot lost forever? (Fownes) Or that the player should be able to recover and stay in the hole/match despite being in a bunker? I favor the latter, but others may disagree. And, obviously, there should be a mix as per the balance tenant above. Then we ask, of 14 long tee shots, what % should have 2 stroke penalty (water/OB), one stroke penalty (lateral water, deep bunker) half stroke penalty (shallow bunker, grass bunker, chipping area, etc.?) In general, I favor more of the latter, but every course is a bit different, and I don't obsess over a getting a third of each.
The length of this answer only serves to point out what I found wrong with that one sentence definition. Like TD says, its not an easy or singular question, nor is it one with exactly one right answer, even if we all argue we have the best personal opinion on the subject.