stability of pitch raises

[Ron Nossaman]

>> The plate compression will work the same with either new or old strings.
>
>I was also under the impression that  plate compression also in similar
fashion
>looses this tendancy...ie as years go by the plate "settles" and becomes more
>stable. You want to expound on this one for me a bit ?

Maybe it does to some small degree, but I still have to overshoot a pitch
raise on an old piano, just like I do one on a newer piano. 

Ron N