Kimball grand replacement hammers

[Lance Lafargue]

I've got a church with a 70's Kimball 6''7" Viennese Classic grand in the
sanctuary.  I have reshaped, voiced, string voiced and regulated this
piano, and it STILL sounds like a Kimball.  It just has a nasty, noisy
sound.  They are willing to replace the hammers IF it will improve the
sound. I believe they used Imedegawa hammers originally.  They are not worn
to their death yet.  I am considering what a set of German hammers (Abel?)
would do for the piano.   They'll be getting a better piano when they move
to a new facility in a year, but would like to keep this one for the choir
room if it can be improved.

1) What % of the sound would be improved by better hammers?

2) What hammers would you use?

I consider myself a pretty good tech at voicing, have seated the strings,
seated hammers to the strings, voiced hammers, etc., etc.  Thanks in
advance!!!!!
Lance Lafargue, RPT
New Orleans Chapter
Covington, LA.
lafargue@iamerica.net