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