I think the water in front of the green is a moot point in today's game. If the water is really in play, it's not a good Eden, but if it just there to defend against a putter being used, its not part of today's strategy. (A greenside pond was added on my club's Eden, so I say we no longer have an Eden...
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Following up on what Bob said, I think the Eden hole is where Raynor most dramatically diverted from Macdonald. I think Macdonald really cared about building a Strath bunker, a Hill bunker and a Shelley bunker, while Raynor (and later Banks) seems to have simply built a "horsecollar" trap around the entire green, leaving a run up corrider in the front.
Are there any Raynor edens with a proper Strath bunker?