I had the pleasure of visiting Bruce Johnson's shop while having some neck work done by Jeremy aka freekmagnet who has a work space there. Lots of custom machines and tooling there used for his creations. You can check out a video that shows Bruce being interviewed, and it shows his shop; search Bruce Johnson and Fillmore to find it. Getting to play his custom basses built in the style of the early Ampeg instruments was quite the treat; amazing workmanship and tone. I really enjoyed meeting Bruce, and also Jeremy, who makes his own cool basses, too.