Joe, Part of the reason for the pin is to offer another option than replacing the pin block in order to avoid using oversize pins. With regard to its application to new pianos, I have to say that I am not a fan of tuning pin bushings. Bushings may mitigate the flagpoling of standard pins, but unreliably so. The degree to which the bushing helps depends on how much it has been crushed, how well it meets the pin hole, how many tunings have progressively crushed it, etc., and can vary from pin to pin. Personally, I doubt that they accomplish very much, especially after they have been crushed over time. I would rather create more stiffness in the pin and do without the bushings. The result will be more uniform and longer lasting. I would like to see nothing larger than 1/0 diameter at the coils and enough thickness the rest of the way to ensure optimum tuning characteristics. This can vary according to piano design. In Steinways perhaps 2.5/0 (7.20mm. or .284") might give the right degree of rigidity. In open face pin blocks the only reason to use my pin design might be to have more surface contact area in the block. The enlarged section of the pin does not project far enough above the block to affect flagpoling. In closed blocks, on the other hand, it can make a considerable difference. Paul Larudee Joseph Garrett wrote: > Paul, > Now that you have described the tuning pins. I get it. Although, I'm in > agreement with the rationale, I'm not sure I fully see the reason for such a > pin. Is it possibly for the situation specifically in S&S grands? If so, > then I see the reason, as well. Thanks for the explanation. > Regards, > Joe Garrett, R.P.T.
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