Steinway hammer voicing

[Andrew and Rebeca Anderson]

I haven't really got into voicing by additive.  So far needling has 
worked well for me...

I've got voicing to do on a D this coming week.  There are a number 
of notes that are duds.  No bloom.  Short sustain.  Like they don't 
go anywhere.  No termination problems evident.  I'd use deep shoulder 
needling to open this up usually.

Is there a different approach for lacquer hardened hammers?

Thanks,
Andrew Anderson