Well, since there doesn't seem to be a bunch of enlightenment on laminated knucklebones pouring in, I've got another annoying question I was holding in reserve for just such a situation. Are there any detectable differences in performance, longevity, bushing abuse, or competitor envy between brass, plated brass, or plated steel key pins? Why not nickel silver, stainless steel, or Kryptonite? With center pin composition being of such concern, it seems that key pin composition cults would be inevitable too. I admit I haven't had to repin more than a couple of keys as field repairs in all these years, so maybe that's it. No one notices any difference. Still, it seems odd that no one champions or outright condemns specific key pin materials in either advertising or technical literature. Or do they? Ron N
This PTG archive page provided courtesy of Moy Piano Service, LLC