The sound went mellow with the brass pins which makes a nice sound when 'strumming' behind vocals. With 8 brass pins it must make quite a change to the weight on the sound-board. I have a love-hate relationship with brass pins. For a while I thought they were brilliant on some of my guitars. Then I replaced them and changed my mind. Then I changed some of them back! They just add another imponderable when moving from one guitar to another, changing string gauges, pins, plectrum, etc.