Does anyone know if the $40 Fatfinger thing-a-ma-jig, which clamps onto the headstock, supposedly increases sustain, makes basses louder, gives string response more balance, tunes out dead spots, and soothes acid indigestion, is for real ? I have a `70 Fender P with a "Bermuda Triangle" at the second fret on the D, plus, some more sustain would always be nice. If it does perform, couldn't one just go to the hardware store and get a big chunk of brass and achieve the same result ?