Mike, Yeah kind of like having cancer surgery there really isn't any proof that it will work in your case but you just never know.
I can remember lobbying back in Washington D.C. a conversation with senator Murkowski Republican from Alaska he was standing 5 feet away from me screaming at the top of his lungs that he had never read any "Science" on the need for riparian zone protection, this was not a lie. He had informed his staff to keep all such reports out of his office.
That must be similar to what people who say things like there is no proof dam removal will work are thinking or whatever. I guess thats the beauty of free speech a lot of times its worth just exactly what it cost.