Thanks, heard about the JAE connection, but didn´t know it was on film..
Even with bridge in lowest possible position the action is too high. I´ll need to get some advice from my luthier.
If he recommends sanding the bridge or something, I can always wind a new pickup.
Thanks for the Gretsch link too, it says supertron was introduced in 1964, and the endpin was dropped that year.
The serial nr. dates mine to 1963, and it has both a supertron and the upright endpin button.
I also saw some other gretsch ads, claiming it was especially designed for bass. It seems more likely that it´s just a filtertron with blades, that can be used wit ether 4 or 6 stringed instruments, but who knows.
Anyway, a nice and different bass, guess I have to start some left hand exercise.