there is a place for science and there is a place for trial and error and curiously both paths collide in this hobby.
I'll not argue there is substantial science in the designs and builds of electronic equipment, though the 'exact' process by which it's associated parts are amassed into a highly resolving soul satisfying audio system has yet to be published which attends to every concievable modification, choice, or incongruity.
how many filaments did Edison go thru before he found one that would last for more than scant seconds? then minutes? then hours and days?
Edison even tried horsehair!
ever wonder exactly where horse hair was on that list?
as for reputed 'colorations' attributed to wood types, sometimes the audio needs coloration. or better said, 'colorization', or merely some added color.
everytime Edison tried a new filament material that did not work he came one step closer to the one which would.
often in the course of science remarkable solutions or results occur which took place entirely from happenstance or mistakes and they were as such not a part of the original method being attended to.
Thankfully Edison's ideas on DC current/voltage were short sighted enough he lost out to Tesla and Westinghouse' approach for using AC energy.
Tesla too had to swap horses in mid stream and he had the genius to build an induction motor with alternating coils and forego his plans on transmitting electricity thru the air .
when in completely uncharted waters, how does one choose a particular direction, or know that direction is the best one with which to begin? even scientists have to guess now and then.
indeed we all guess, speculate, and theorize, with everything we do. when we buy an amp for our speakers. cables for our amps. tubes for our tube gear.
despite the inherent science in this or that's build or application, its all trial and error. guess work.
although asembling an audio system then updating and or upgrading it to elevate its total performance is or can be quite involved and often tedious, sonic quality is a much easier and far simpler proposition. here the quality is a purely subjective accounting of the presentation by the one who pays the bills, and at times possibly the input from their better half.
as for wood footers, their influence on the sound seems to be about density and the length of their fibers which make up the various kinds of trees being utilized.
IMHO, Ebnony and Mahogany are my favs. however it do depend on the application, rack, device, etc..
RWV