335 ash bass basskit bass kit beatle bass beginner bridge bridge position build custom direct mount humbuckers effects electric es-1f ex-1 ex-1e ex-4 ex-5 falcon fender finish first build first time builder fretboard fs-1 starcaster gr-1sf gretsch guitar guitar build hb4 hollow body i need help jm-1 les paul neck join mahogany maple marcel multiscale music my build diary neck newbie new member nitro nut pbass pedal phase pickups pitbull guitars rc-1 pickups sanding scale length setup shim single cut soldering ssr-1 st-1 stain tb-4 tele headstock tele style bridge plate thunderbird tl-1 veneer which kit wiring wiring diagram