Originally Posted by SingeMonkey
Sure. Likewise you could say that 2 pieces of African Mahogany will sound more like each other than a piece of mahogany and a slab of aluminium.
Point is African Mahogany and Honduran Mahogany and Cuban Mahogany are all very
similar woods. I'd start from the assumption that the differences in sound as electric guitars are too small to detect, and then let someone disprove that to my satisfaction.
Differences between pieces of the same species (even from the same tree) clearly do have detectable differences. I'd need it proven that the difference in species makes more difference than this before I'd drop the assumption that they're identical for making guitars.
To further complicate things
if one species - whether genetically or because of where it's grown - might, on average be heavier or lighter than another. So you'd have to adjust for weight too - have a matched set on either side weight-wise.
Cool thing is no one's ever likely to do this so we can just keep speculating endlessly
All you need is a spectrum analyser and a lab set up