From reading their works, I find that Alister MacKenzie and Pete Dye both like to make the top golfers uncomfortable. Alister goes to the point of suggesting you keep from taking advice from the top players, as they will advise removing the interesting things from the golf course, because these things make them feel uncomfortable, or tend to hurt their score.
I was surprised to read Tom Doak's assessment on this issue, because he is an advocate of Alister's work and he was an employee of Pete.
What I find amazing is that the farther the hole drops the more predictable the result. I don't think the people stating their opinions to the contrary realize this. The one variable that changes this is the wind as Bob just brought up (for the first time as far as I have noticed). Good players deal with the wind on 300 yard carries. Is that that much different than the added carry time for a drop shot hole?
I come down on the side of how does the hole affect the walk? (And, yes Doug, golf is a walking game. May I suggest you join CartBallAtlas.com.

) In that respect, I find nothing wrong with Chambers Bay #9. The hole has been fit seamlessly into the walk. I asked my caddy how long the hole would play given the wind of the day. I took my club for the distance he recommended, and hit it to 8 ft. I love the hole.

I have noticed several people mention that Chambers Bay is a difficult walk. I did not find it so. I attribute the difficult walk attribution to a couple of things.
If you play the back most tees, I understand that it is a significantly harder walk because of the climbing back to those tees. If you ride a cart for most of your rounds, I can understand that the Chambers walk can be difficult.
In conclusion, I don't see any limit to the amount of drop for a shot on a great hole. If the hole fits, call it great!
