Now if someone that knows why this happens I would love to hear the explaination. Regards, Gene Why what happens? Not sure what is being asked, but, there is more clearance between the knuckle and jack because the forces going through the jack are greater. If, by why, you mean, why does it eliminate the knock, I think it is because of friction slowing the jack's speed at the final stop, and the closing geometry effectively letting the jack return be stopped by the button as well as by the knuckle. Regards, Ed Foote RPT http://www.uk-piano.org/edfoote/index.html -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20100302/56181b46/attachment.htm>
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