Quite a large number of seniors and regional guys use Buzzsaws (John Handegaard comes to mind, a local guy Dan Kukuk who bowls some regional and some big money events, Mike Savoia (sp?). Haugen may well be the only national player to have used them on TV, but I believe that I've heard that some other guys have used them in the early rounds, but switched on TV for the bucks.
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"To plunder, to slaughter, to steal, these things they misname empire; and where they make a wilderness, they call it peace." (Tacitus)
"If one tells the truth, one is sure sooner or later to be found out. " (Wilde)