Sander De Gier shared this custom version of his Bebop model on Facebook and it stopped me in my tracks. The luthier wrote a great explanation of the bass, so we’ll let him tell it.
“So much to tell about this bass,” he writes. “The customer wanted something unique and it had to be the ultimate slapbass. It features a hollow hard ash body, with f hole in the arm bend. Three custom pickups, wound for punch, each with a selector switch. The 4th switch is series for neck and bridge. Controls: vol tone bass treble (our 70s pre). Yes that’s passive treble roll of and active treble boost. The 3 pickups give you many cool mixing options for all varieties of slapsound you could want. The neck is 1 pc santos rosewood. Inside are carbon rods and a dual action trussrod and yet it’s a 1 pc neck. Special trick. I have built hundreds of basses but this was something else.”
He also made a quick demo video: