I recently picked up a fender p midnight special. Beautiful bass, and probably the rarest thing I own. One thing I notice, however, is that the A string sits very high coming off the nut, which Im worried may effect sustain, and also, just doesn't look good imo. Would adding a string tree negatively effect the value of a somewhat collectible bass? I certainly wouldn't want to molest the thing if it did. I'd rather be able to send it to a future owner with all the relevant pieces in tact.