Very interesting article, Diane. Funny though, not funny ha ha but funny peculiar. I was at my luthiers shop on Saturday and talking about graduating the top of the violin kit I have. I asked him how if the back of the violin needed to be graduated. He said the back is not as important as the top and can be thicker, no problem there.
From the article:
"The violin’s back plate also contributes to its acoustic power. Violins carved from wood are relatively elastic: as the instrument produces sound, its body responds to the air vibrations. A thicker back plate leads to more sound power at the air resonance frequency".
Good information, thank you, Diane Scratchy.