<HTML> <HEAD> <TITLE>Re: [CAUT] Andres punching tested</TITLE> </HEAD> <BODY> 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 exp= eriment.    I had installed the usual Thick green punching a while ba= ck  prior to receiving the New Oorebeck front rail punching's. So I lis= tened to the sound of F-4 carefully, checked the dip , then changed to the n= ew ones, checked the dip , played the note & the sound suddenly came tog= ether with more power and clarity than the first punching. The solidity unde= r 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 bou= t three times on the same note with the same result. I then checked a bass n= ote f-1 with the same effect.    I'd say the new puncing  has a similar beneficial ye= t cumulative effect much like to mating & hammers to & leveling stri= ngs   I placed the green punching between two pieces of thin maple &a= mp; put a calipers on each side. The compression with modest force wo= uld 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 to= uch 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 pa= rts 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 presse= d felt & not woven.  I immediately changed the entire set & tomorrow or Friday I'll ha= ve a chance to hear & feel  the whole piano.   Regards   Dale Erwin </BLOCKQUOTE> </BODY> </HTML>