<html> <body> Hi David,                   The very rigid wire tends to create key noise, from the B/R hole/pin.  Just a slight hint of chucking and the key will clatter.   Slightly flexible and the check helps to absorb that noise energy.  I think Wim mentioned, better checking from thicker wire.   This is not so. The slight flexibility helps trap the tail.  Like all things in piano work there is a window for the parameter.   Too flexible unstable regulation, too stiff, then too much noise.   Checking is more of a function of  leather/felt quality, and tail geometry, plus a little flex.  <G> Definitely going back to sleep. Roger At 11:43 PM 1/4/2005, you wrote: <blockquote type=cite class=cite cite="">Hi Roger, I am curious as to your statement that thinner back check wires are "quieter".  What kind of sounds do back check wires make? Thanks! David Vanderhoofven Joplin, MO At 01:57 PM 1/4/2005, you wrote: <blockquote type=cite class=cite cite="">Hi Ric,              I prefer the thinner wire, Install the new wires by dipping them in a slow cure Epoxy.  The thinner wire is easier to regulate and tends to be a little quieter. Now I go back to sleep.  <G> Regards Roger</blockquote> _______________________________________________ caut list info: <a href="https://www.moypiano.com/resources/#archives" eudora="autourl"> https://www.moypiano.com/resources/#archives</a></blockquote></body> </html>