Some notes make a strange "ploc" sound on the fortissimo

Paolo, I agree.

To replace a hammer rail in this way, it is preferable to let the old one carry on. It wasn't even prepared properly.

Giovanni, I am glad you agree. I am always very cautious with opinions, but this time it seems exaggerated to me. At this point, I recommend also checking the downstrike point and the inclination of the drilling, as well as the height of the drilling and the perpendicularity of the hammer axis (better if at 91-92 degrees)... and many other measurements.

I believe we opted for a pre-drilled partelliera without respecting the original measurements.

It is a pity to have to express oneself in these cases.

Perhaps we should observe this up close, but the fact that the tails have not been shaped already compromises the parade and the repetition. It is anything but a "Michelangelesque" nitpicking and I believe, I repeat, that the keyboard weighting is also compromised (I hope the lead weight hasn't been increased at the expense of inertia).

How would these problems be resolved? And what should I be aware of? I feel a "comfortable" keyboard.

All the work should be redone. But don't worry, they are flaws of form and substance that, if the pianist is satisfied, do not necessarily have to be corrected. I probably would never have put those hammers in and would have suggested new styli, for a cleaner and more functional job.

We have seen worse around here. So if you are happy, that's fine.

It also depends on how much was spent.

Certainly

Having seen the photos, I agree with Pianoexpert and Giovannig entirely.

For me, these are scenes already seen and personally tested.
I hope the same thing doesn't happen in your case; over time, the grooving will only increase the numerous sonic divergences, which (at least at the beginning) are muffled by the fact that it is new and was done in such a way that there is a fuzzy layer to "mask"...... but then over time they begin to be heard.

Unfortunately, with these "jobs," one does not realize the performance that a piano can actually give, except when playing it after having corrected them.... at that point you say "but what have I been playing on until now?"

I want to specify that regarding the "grooves," I was talking about minimal differences (of 5%), in the case where a piano is in perfect regulation, not to be confused with what some technicians say to excuse themselves from losses in performance of 20% and even more, which they cannot bridge or cannot because everything would have to be done from scratch, often what they have just delivered...

Ciao!

I thought the tails of my new grand piano weren't right... before seeing these.

hi everyone