Thanks, Vikki. My guess is that the Rock Coaches simply train singers how to move out of their neck and into their diaphragms, helping them to attain the power and force they're looking for without that wimpy, strangled sound that a shy and untrained singer can tend toward. They probably don't recommend shrieking either.

Big Jim, like Roger Daltrey, your voice has not sustained damage. But I tend to believe that those of us who let 'er rip are living lives "at risk" vocally. Nodes are nodes. Some sustain damage and some don't...but damage is definitely possible, it's not a myth.

http://www.soundclick.com/MarkKaufman