[pianotech] tuning pins

[Terry Farrell]

I don't remember what brand, but I have also noted new tuning pins  
that are not round. But how do you conclude that slight imperfections  
in roundness contribute to pin jumpiness?

Terry Farrell

On Sep 21, 2010, at 6:38 PM, Roger Gable wrote:

> Noah,
> I would advise you to consider the Diamond pins for the following  
> reasons: The Denro pins can vary in diameter by as much as .004".  
> That's enough to produce an irritating difference in pin torque.  
> Also, ( this is a big one) the Denro pins aren't always round, which  
> contributes to jumpy pins.
> Roger Gable
> P.S. I just bought a set of Diamond Pins. The current price is $164.00
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