At present have tried three different pick up maker's but no joy, Bare knuckle dont do anything, tv jones have one that would fit but have'nt got back to me about the sound etc, wizard could have something that would fit (im hoping they do) but there is the possiblility either a bartolini or seymour duncan rickenbacker bridge pick up would fit with no problem's, as its a smaller pick up than the jack pick up.