does anyone know good repair guy for fretless bass -neck(fender)? i wish whom you know the guy is working around Los Angeles,CA.... I have fender fretless j-bass and recently, i changed flatwound string to roundwound(d'addario -XL 4 strings)...I didn't like that dummy of flatwound sound(?). anyway since i use that roundwound string...ah~i adjusted neck with a capo and feeler guage, but soon i noticed there is BUZZZZZZ(which is on G string at 19th fret!) but funny thing is only 19th on G-string is buzzinng. rest of them(includes 18th or 20th position) they sounds just great!!!! except 19th position. only that 19th position has too much buzzing. neck is straight...relief is 0.012". can someone please rescue my 19th position from evil-buzzzzz? please.... can you please tell me if you know any good luthier?