[pianotech] singing sustain, what to do?

[Ron Nossaman]

Porritt, David wrote:
>If the cause is as you say, it's a
> design problem and they'll never know about it until they
> see it for themselves.  

And even if you'd called them on the same thing four times in 
the last month in four different pianos, this would be the 
first time they'd ever heard of such a thing.

>Since it is under warranty I
> wouldn't feel right charging the customer for the repair,
> and yet doing work for free is not a good option either.
> 
> dp

Good thinking, and good luck.
Ron N