I have recently started building myself a 60 stak knob J style bass. I have spend a very large amount of time researching the pre-cbs build and tooling methods, materials and processes that went into creating what are now regarded as some of the finest and most innovative instruments in the world and now feel confident that i can recreate them with pride and above all respect for the man that set the standard! I plan to recreate these processes where possible and also use period correct materials (again, where possible). so here is the spec for the Jazz bass: 2 piece light Swamp Ash body finished in blonde nitrocellulose laquer, correct router hump, pin dowels, pickup placement, lazy susan nail holes etc Rock Maple neck (hard) medium profile Slab Brazillian Rosewood fingerboard 7.25" radius, clay dots sideway installed vintage fretwire vintage reproduction Capacitors CTS pots - Swithcraft jack - cloth wiring - shielding plates etc Full celluloid Tortoise shell 4 ply pickguard Bareknuckle handwound J pickups Gotoh vintage hardware - lightly aged I will make the truss rods myself as the vintage correct size are not available off the shelf I hope you enjoy this thread. I can't wait to get playing it!