No, no, no, no, no! Don't ever, ever! suggest that, that is the dumbest thing I have ever read Burt. If you scream how it comes naturally more than 75% of the time the person is gonna be creating rasp by closing his throat and forcing air through, you MUST make sure your throat is open and funnel air up against the back of your throat to create rasp, and you MUST push air from your stomach to get the projection, otherwise your vocal chorRAB will be ruined and you'll rupture a vessel in your throat.