on needling old upright hammers

[Alpha88x@aol.com]

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Greetings,
 
           I would like to thank the list for the generous wealth of 
information on needling hammers this week. Some of the info affirms my thoughts and 
there were alot of things new too that I learned. I really enjoy playing around 
with needling my old upright's hammers too, which I am going to eventually 
replace, and I am getting the most educational/experimental time poking them. 
   
           Two more questions:

           1. On these 100 +, - year old upright hammers (or for that matter 
any old old hammers), is it possible that one could needle them to sound 
really much better and less shrill, do a good job, satisfy the customer, and then 6 
months later get a call that the wool is falling to dust off the hammers?

            I really do have an over-active imagination, yet I do only have a 
whopping 1 yr. plus experience, and as a rookie, I just have these thoughts. 
Some of these hammers when you file them, especially the old ones, their 
filings turn to DUST on the workbench. It's scary...and

           2. Would needling deeper than 3/16" to lets say, 1/2" on the 
shoulders, give any benefit? Does going deeper into the hammer release more sound? 

Julia Gottchall, 
Reading, PA

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