<HTML><HTML>Greetings,            I would like to= thank the list for the generous wealth of information on needling hammers t= his 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 gett= ing the most educational/experimental time poking them.               Two more questi= ons:            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 c= all 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 the= se hammers when you file them, especially the old ones, their filings turn t= o DUST on the workbench. It's scary...and            2. Would needli= ng deeper than 3/16" to lets say, 1/2" on the shoulders, give any benefit? D= oes going deeper into the hammer release more sound? Julia Gottchall, Reading, PA</HTML>