TUSQ, Bone, Saddles, & Nuts~
Tusq saddles ring like glass and seems to promote a fuller spectrum of tones. Similar to a master quality Top or a set of Brazilian rosewood, a saddle needs to ring, not "thud". This video demonstrates why I use TUSQ saddles as standard on all my instruments unless asked. It is also of consistent density, making it especially perfect for undersaddle pickups.
Bone is an excellent choice if a warmer sound is wanted, especially on a new sitka spruce top instrument which can certainly have that new 'bright' sound. Bone, Mother of Pearl and Black horn are all about the same in tone and all polish up beautifully.
Nut material is far less detrimental to tone then saddles are so I use polished Bone, Mother of Pearl or Black Horn according to the customers preference. I pair Black Horn nuts with Black Tusq saddles for a consistent look.
On custom builds, I can include a saddle of each material for you to decide which is best for you and your instrument.