Tusq by any other name is plastic. I don't care what kind of fancy name they have for it now.
The tusq nut and saddle on my DN4 looked ratty after just a few months.
My dealer installed a Colosi bone nut and saddle.
Sounds a bit better and looks a LOT better.
Stock bridge and pins next to the installed Colosi bridge and pins.
Stock nut next to the installed Colosi nut.
Taylor puts bone nuts and saddles on the 9 series.