<HTML><HEAD> <META charset=US-ASCII http-equiv=Content-Type content="text/html; cha= rset=US-ASCII"> <META content="MSHTML 6.00.2800.1400" name=GENERATOR></HEAD> <BODY style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; BACKGROUND-COLOR: #fffff= f"> <DIV> <DIV>In a message dated 4/26/2004 8:37:36 AM Pacific Standard Time, yardbird= @vermontel.net writes:</DIV> <BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue = 2px solid"><FONT face=Arial>I remember Frank Hansen (well-known piano tech= in the NE for the last <BR>sixty years) saying that as far as reinforcing h= ammers, you really <BR>only had one pass to get it right. Shoulder or crown,= you really <BR>wanted the hardness on the inside instead of the outer layer= s. After <BR>the initial pass, further waves of reinforcing wouldn't flow th= rough <BR>the felt mass as easily, and thus not as far.<BR><BR>So you judged= the initial doping based on the sound (and feel) of the <BR>hammers, and ho= w a limited set of samples (say, 1, 20, 40, 64 and 88) <BR>would respond to = a given strength of lacquer. The more passes you <BR>have to make, the more = the permeability of the felt becomes a factor <BR>in where the reinforcer en= ds up or whether it does you any good.<BR><BR>Kind of like solid tuning wher= e you want to land it spot on with the <BR>least amount of wire movement.<BR= ><BR>Bill Ballard RPT<BR>NH Chapter, P.T.G.</FONT></BLOCKQUOTE></DIV> <DIV>  <FONT size=3><STRONG>Bill </STRONG></FONT></DIV> <DIV><FONT size=3><STRONG>   I didn't know him but from this pos= t I agree. The man new his stuff. This is my protocol only I use every C sha= rp except c-sharp 89. grin</STRONG></FONT></DIV> <DIV><FONT size=3><STRONG>  Dale</STRONG></FONT></DIV> <DIV> </DIV> <DIV> </DIV> <DIV> </DIV> <DIV><FONT lang=0 face=Arial size=2 FAMILY="SANSSERIF" PTSIZE="10"= >Erwins Pianos Restorations <BR>4721 Parker Rd.<BR>Modesto, Ca 95357<BR>209-= 577-8397<BR>Rebuilt Steinway , Mason &Hamlin Sales<BR>www.Erwinspiano.co= m</FONT></DIV></BODY></HTML>