replacing a back action on a 1909 Steinway B

[John Delacour]

At 20:13 -0700 11/5/08, David Love wrote:

>With back actions it's best to start with something not premounted since
>modifications are more the norm than the exception.  That puts my vote
>toward Renner.

Can someone explain why one would fit a new assembly rather than 
restore the original?

JD