. .currently looking at 2 basses from same builder. . one is a bolt-on. . the other a neck-through. . similar wood combinations. . is it worth it in tonal aspects to fork over $2k more for a neck-through? I'm checking them both out Sunday. .
Ken Smith tells of a story whereby he built 12 of the same model basses with the exact same woods and construction techniques. The finished models were all in his shop at the same time when he decided to compare tonal properties of the identical basses. According to his ear, there were 4 distinct tonal variations for these basses. He concluded that the difference was attributed to the individual pieces of wood, which were all the same species of similar weight.
The point of the story is that generalizing rules can result in stereotypical myths that may also be inaccurate. The best thing the original poster can do is preview the two basses and pick the one he likes best, if any. The differences apparent in these basses may be due to neck construction, or not.