I have a bass with a 40mm nut (about 5-6mm thick), which seems to be an atypical size for off-the-shelf replacements. There seems to be a fair number of 38.5mm nuts available (including the Warwick Just A Nut which is tempting for the extra flexibility). Would I even notice if I installed a 38.5mm nut, or is it going to throw the cosmos out of whack? Maybe it would help to mention that the bass is 30.5" scale with 16.5mm bridge spacing. Thanks in advance for any input.