I read today that supposedly a single maple curl in a pre-CBS Jazz maple neck has a marked effect on tone, i.e. it acts as a "tone slingshot," enhancing the bass response. This writer further asserted that about 20% of "prime pre-CBS" maple-neck/rosewood FB basses have this very desirable characteristics. Has anyone else heard of this, and if so is there a factual basis for it? I am VERY skeptical, but who knows? FWIW, I just purchased a 1962 Jazz that has the "one maple curl." This was NOT a factor at all in the purchase and I only heard about this today.