<html> <head> <style></style></head> <body class='hmmessage'><div dir='ltr'> Thank you all for the answers. There is no budget to repair anything, I was just curious if that is a well known problem. Obviously it is. If I were to repair it, I would replace that whatever its name is with real leather.<br><br>Gregor<br><br>------------------------<br>piano technician - tuner - dealer<br>Münster, Germany<br>www.weldert.de<br><br><br><div><div id="SkyDrivePlaceholder"></div><hr id="stopSpelling">From: karlkaputt@hotmail.com<br>To: pianotech@ptg.org<br>Date: Thu, 22 Dec 2011 17:01:30 +0100<br>Subject: [pianotech] Baldwin upright: bobbling hammers, poor checking<br><br> <meta http-equiv="Content-Type" content="text/html; charset=unicode"> <meta name="Generator" content="Microsoft SafeHTML"> <style> .ExternalClass .ecxhmmessage P {padding:0px;} .ExternalClass body.ecxhmmessage {font-size:10pt;font-family:Tahoma;} </style> <div dir="ltr"> List,<br><br>today I tuned a Baldwin from about 1980. With a fortissimo blow there was only a poor checking and therefore some nearly bobbling hammers. I think the reason is that the catcher buckskin and the backcheck felt don´t have a strong enough grip. Or it could be that the overall geometry of the action is not so well designed. There was enough aftertouch and no problem with a piano or forte blow.<br><br> We don´t see many Baldwins here, but I guess in the USA this problem might be well known? The cather buckskin is made of a strange material, no leather.<br><br>Ever experienced that on a Baldwin (about 105 cm height).<br><br>Gregor<br><br>------------------------<br>piano technician - tuner - dealer<br>Münster, Germany<br>www.weldert.de<br> </div></div> </div></body> </html>