Lots of musicians and builders are scienticians, few are scientists.
Here are a couple of navel gazing exercises:
1. take two identically shaped and constructed basses, one made of all hard maple, the other made of all wenge. Use identical hardware and electronics on both. String one with flats and the other with roundwounds. Give them both to a blindfolded bassist who does not know which is which. Ask him to tell which wood is which. .
2. take two identically shaped and constructed basses, one made of all hard maple, the other made of all wenge. Use identical roundwound strings on both. Put nordy fat stacks on the maple and standard fender
jazz pickups on the wenge. Give them both to a blindfolded bassist who does not know which is which. Ask him to tell them apart based on wood.
3. take two identically shaped and constructed basses, both made of hard maple from different suppliers. Use identical flats and pickups on both. Give them both to a blindfolded bassist and ask him to tell you which one is maple and which one is wenge. (get it? - they are the same construction and material - the power of suggestion is at work.)
Some folks need to think scientifically, and think about face versus construct validity. Read up on perception...
There, I said it...