<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta http-equiv="Content-Type" content="text/html;charset=ISO-8859-1"> <title></title> </head> <body text="#000000" bgcolor="#ccccff"> Is it really only the increased string tension of a hard blow that "pulls" the string across the bearing bridge?  What about the vibration of the string and bridge helping to overcome the friction at the bearing points, similar to a heavy object on a sloped table starting to "slide" when it or the table vibrates?<br> <blockquote type="cite" cite="mid200410300542.i9U5g3Y31240@bridget.rudoff.com">But not knowing what the tension differential between the speaking length (and beyond) and the rear duplex (and beyond), the information is pretty much useless for determining whether a hard blow will pull a string through the bridge pins. <br> <br> Ron N <br> </blockquote> </body> </html>