Oh God here it comes haha....I wasn't trying to rehash the age old "I can hear the difference in tone between my plastic and aluminum pickguards!"

....I just wanted to really see if I could actually tell a difference between these 2 similar basses of differing board cuts. My test was to just hold a 7th fret E on the A string on both basses, unplugged, to just hear the pure tone of the string on the wood. Both basses have the same set of TI flats on them and are constructed of the same alder/rosewood combo. The only difference is the AC board is older by about 25 years. I'm not saying the difference in tone is totally attributed to the thickness of the rosewood since obviously frets can make a big tonal difference, but vibration-wise I think it has to play a part and sure enough the tone was slightly thinner sounding on the thinner board which would kind of make sense I think....I don't know maybe I'm totally out of line here and this was a bad experiment haha