Endpin update is that a regular 1/2" diameter carbon steel rod is still my favorite option. I have tried stainless steel, nickel silver, steel tube with various fillers (carbon fiber, steel, and brass rods), and solid carbon fiber.
In general, on this bass, less endpin mass increased upper end "openness," brightness, sweetness, and volume, but lost the fuller low end. But it is not just mass; the nickel silver rod weighed more, but because it was slightly more flexible (perhaps), the bottom end was not as good as with the steel.
The stainless steel pin is the only reasonable option, so far; I have been using that in some situations; it is slightly brighter and slightly more even, but lessens the "organ-like" effect on the E string, which I do hate to lose.
Taking a break from endpin tinkering for awhile; too much other stuff to work on right now. Next trials, perhaps, will be high-speed steel rod and silicon bronze rod.
Last edited by Eric Swanson; 10-27-2010 at 04:51 PM.
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