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<DIV>I wonder if pre-compressing the punchings would give similar results ... pre-compressing by stringing the punchings on a slender threaded rod, then with washers between the punchings and wing nuts, squeeze the whole thing together by tightening the nuts, and storing them that way until needed.<BR><B><I>Erwinspiano@aol.com</I></B> wrote:
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<DIV><FONT size=3> <STRONG>List</STRONG></FONT></DIV>
<DIV><FONT size=3><STRONG> While putting the final hours on a newly bellied D I did an experiment.</STRONG></FONT></DIV>
<DIV><FONT size=3><STRONG> 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.</STRONG></FONT></DIV>
<DIV><FONT size=3><STRONG> 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. </STRONG></FONT></DIV>
<DIV><FONT size=3><STRONG> I'd say the new puncing has a similar beneficial yet cumulative effect much like to mating & hammers to & leveling strings</STRONG></FONT></DIV>
<DIV><FONT size=3><STRONG> I placed the green punching between two pieces of thin maple & put a calipers on each side. The compression with <U>modest force</U> would change easily as much as .030. The white new punching only .010.</STRONG></FONT></DIV>
<DIV><FONT size=3><STRONG> 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.) </STRONG></FONT></DIV>
<DIV><FONT size=3><STRONG> 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.</STRONG></FONT></DIV>
<DIV><STRONG><FONT size=3> Think of the improvement in SOUND Baby!!!!!!!!</FONT></STRONG></DIV>
<DIV><FONT size=3><STRONG> I noticed no change in noise even though this is a pressed felt & not woven.</STRONG></FONT></DIV>
<DIV><FONT size=3><STRONG> I immediately changed the entire set & tomorrow or Friday I'll have a chance to hear & feel the whole piano.</STRONG></FONT></DIV>
<DIV><STRONG><FONT size=3> Regards</FONT></STRONG></DIV>
<DIV><STRONG><FONT size=3> Dale Erwin</FONT></STRONG></DIV></FONT></BLOCKQUOTE></DIV></DIV><BR><BR>Vince Mrykalo<br>University of Utah<p>
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