I JUST PURCHASED A USED NS WAV 4 BASS AND I'M LOOKING FOR SOME SUPPORT WITH A FRETBOARD/NECK ISSUE. IS ANYONE HAVING TROUBLE WITH EXCESSIVE STRING NOISE ABOVE AND BEYOND THE NORMAL? I HAVE A COUPLE OF NOTES THAT HAVE "BLAP" AND I'VE TRIED TO ADJUST IT OUT WITH THE TRUSS ROD ADJUST AND BRIDGE...