Bosendorfer replacement hammers

[A440A@aol.com]

Greetings, 
> And I am wondering what I might be missing.
>Has anyone else experienced this large of a difference in specification vs.
>actual measurement on a Bosendorfer.  Would the aux repetition springs be
able
>to make up for the added hammer weight.  What else might I be getting into
>with the larger hammers?

     You may want to consider the Renner "Lite" hammers.  They are on a less
dense core, they do weigh less,  and they are as long as you want them, (
boring, cove, tail, taper are not done yet on these).  
   I would make sure the keyframe has not been lowered, and then work out a
few sample hammers on the shank.  Sometimes the cardinal rule of 90 degree
hammer core to shank can be compromised to good effect, but this sounds like
an extreme case. 
Good luck, 
Ed Foote