Well I have been curious about this subject for a long time and finally last week went to my guitar shop and we changed my tusq saddle to bone and I could tell a big difference in the sound we changed back and forth several times and the bone has more sustain and richness and I can feel the vibration through the body is stronger. Then we swapped the bridge pins from plastic to walrus jawbone and I could tell a slight difference . So for my Gibson songwriter deluxe the saddle made the biggest impact I love the sound!