Mid-high Timbre

Hello Piano Tuner, I am very pleased that you remembered my problem.

No, I haven't resolved it; I only obtained small improvements by putting a slightly thicker felt on the left side of the action (so I moved the action about 1 mm to the right).

I am trying to play with the lid open to solve the problem. The hammer tips are grooved and some of the high middle ones are flattened as if they had been cut with a paper cutter!

Thank you for your interest.

Regards, Sergio.

In any case, I wonder: when is the time to replace the hammers, and when can they still be shaved or the needles used?

It depends on how much felt is still left.

If the hammer rail has already been shaved once, and a new shaving could lighten the hammers too much, then it is preferable not to intervene and instead replace the hammer rail with one that is strictly identical in shape and weight.

And how can you tell if it has already been shaved?

Don't laugh, but I would like to do the work myself!

if you have never had it voiced and the hammers are very marked, then I really can't help but think that it has never been voiced!

If you decide to "venture" into the difficult practice of voicing-regulation, proceed with the utmost caution because both voicing and regulation can cause irreversible damage to the hammer rail and therefore to the soundboard of your piano.

Best wishes and. . . let us know how it goes!!!

If I were to extract the action to take detailed photos of the hammers in section and plan view, could you make a more precise diagnosis?

. . . Photos are certainly a good help for a correct diagnosis.