<HTML>Terry, Tom Cole(and others) say they can replace the cords in 2 or 2 1/2 hours.=  Tom gave at a technical at a chapter meeting last year where he gave = a slide show and step-by-step instructions. I've never done it before, but I have a cord replacement job pending. &n= bsp;I'm figuring on 4 hours as a first timer, counting learning curve. &nbsp= ;Fortunately, the piano belongs to a store I contract for, so it's an ideal = guinea pig situation. If the pinning is still good, most people seem to think it's faster to d= o the cords than to replace the flanges.   Dave Stahl In a message dated 6/3/04 6:48:57 PM Pacific Daylight Time, mfarrel2@tam= pabay.rr.com writes: <BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-= LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">Thank you, thank you, thank= you pianotek wizzards! I think someone mentioned on this thread a bit back that double striking= on a Yamaha vertical might be related to broken hammer butt spring cords. I have seen the broken butt spring cords many times but have not been ab= le to tell the piano owner what problem that might cause - because the notes= still seem to "function". I went to tune a 1970 (or so) Yamaha console (for the third time) today = and after I asked how the piano had been doing since the last tuning she sai= d that several notes would double strike the string when playing softly. I immediately put on my thinking cap and said (before opening up the pia= no) that it is likely one of two things: either the action is way out of reg= ulation or a number of hammer butt cords have broken - "maam, that is a comm= on problem on Yamahas." Opened that sucker up and showed her about 30 broken hammer butt cords. = Man alive, she thought I was professor piano! Thanks folks, this thread really didn't excite me too much, but I know i= t is something that I haden't dealt with before, so I had been reading them.= Good thing. Thanks, thanks, thanks! BTW, how long does it take someone to replace a set of flanges, or just = the cord. Thanks for the 16th time! </BLOCKQUOTE> </HTML>