<HTML><HEAD><TITLE>Re: [CAUT] Andres punching= tested</TITLE></HEAD> <BODY> Yes.   They seem similar to scrap hammer= felt... David I.   <DIV style="PADDING-RIGHT: 5px; PADDING-LEFT: 5px;= PADDING-BOTTOM: 5px; BORDER-LEFT: #000000 3px solid;= PADDING-TOP: 5px"> <HR> Original message From: Fred Sturm <FSSTURM@UNM.EDU> To:= College and University Technicians <CAUT@PTG.ORG> Received:= Fri, 14 Jan 2005 07:42:15 -0700 Subject: Re: [CAUT] Andres= punching tested Is Andre’s punching firmer than= Pianotek’s “pear green”? (Which is quite similar to Yamaha,= etc). Regards, Fred Sturm University of New= Mexico On 1/12/05 9:58 PM, "Erwinspiano@aol.com"= <Erwinspiano@aol.com> wrote: <BLOCKQUOTE>List   While putting= the final hours on a newly bellied D I did an= experiment.    I had installed the usual Thick= green punching a while back  prior to receiving the New= Oorebeck front rail punching's. So I listened to the sound of= F-4 carefully, checked the dip , then changed to the new ones,= checked the dip , played the note & the sound suddenly came= together with more power and clarity than the first punching.= The solidity under my finger was firm and= sure.     Thinking it to be an anomally I= changed back to the green ones. The Sound diminsihed &= lacked focus. Well ,I did this a bout three times on the same= note with the same result. I then checked a bass note f-1 with= the same effect.    I'd say the new puncing=  has a similar beneficial yet cumulative effect much like= to mating & hammers to & leveling= strings   I placed the green punching between two= pieces of thin maple & put a calipers on each side. The= compression with modest force would change easily as much= as .030. The white new punching only= .010.    Considering all this, since the key= is where the power is generated  it needs to have a precise= stopping moment. If not after touch can change to a depth of= .420 even with an initial dip setting of .390 .(which is my= preferred dip in Steinways whenever possible.)=   Think of the distance in excessive jack travel= especially on parts with a narrow window for jack movement &= also it's effect on slowing repitition performance. With the= white punchings a far more dependable dip /touch can be= assured.   Think of the improvement in SOUND= Baby!!!!!!!!   I  noticed no change in noise= even though this is a pressed felt & not woven.  I= immediately changed the entire set & tomorrow or Friday I'll= have a chance to hear & feel  the whole= piano.   Regards   Dale= Erwin <FONT= face=Verdana> </BLOCKQUOTE><FONT= face=Verdana> </DIV></BODY></HTML>