wood is too random and has unavoidable colorations. witness the tuning people do with wood, considering various tonal shades. and once you bring one coloration into the equation, then you have to seek another one for balance. every coloration reduces the pure view on the music.
OTOH ’engineered’ materials using wood can allow for predictable resonance attenuation and a natural sort of predictable result.
I use an engineered wood called panzerholtz under every piece of gear. it’s not only panzerholtz, but it’s a particular thickness, and with a particular cut-out on the bottom and specific footer interface. it’s called a Dazia and made by Taiko Audio in the Netherlands.
I have 12 of these in my system.