<!doctype html public "-//w3c//dtd html 4.0 transitional//en"> <html> Roger, Ed, and Ron Ron Koval wrote: <blockquote TYPE=CITE>Cool clue, ric!</blockquote> Grin... you liked that one eh ?  The other one I was going to give was <blockquote>If you block the hammer from rising and put pressure on the key the neighboring hammers all drop significantly.</blockquote> <blockquote TYPE=CITE>  So it seems that the bedding must be good if you don't get the same symptom with the hammer out of the equation.....</blockquote> I''ve checked and rechecked the bedding on this instrument 5 or 6 times. Darned things been driving me crazy :) Dags hold the back rail firm, front rail is as flat as you ever could want.... no.. its not the bedding.   <blockquote TYPE=CITE>So, my guess would have to be an over-flexable hammer rail, if you get movement of key neighbors with the hammer in the mix.</blockquote> Thats my guess as well, and you can see the thing bending. I checked on some other pianos and found that a Young Chang does nearly the same when you hold the hammer down... a bit stiffer tho... and it doesnt have the same problem with play. A Bohemia and my giant Petrof dont respond this way at all. Hold the hammer in place and press the key and all is dead stable... sigh.. and just when I was beginning to hate Petrofs again.. :) Question is... assuming its the hammer rail... what to do about it ? Any good suggestions ? <blockquote TYPE=CITE>Or, does the hammer provide enough resistance to make the balance rail move?  I guess it would depend if the neighbor hammers move up, or down on strong blows.</blockquote> Well.. you cant see that on a hard blow...happens too fast...all you see is lots of movment. But blocking the hammer and pressing the key seems to be the giveaway.. or what ? <blockquote TYPE=CITE>Ron Koval   <a href="https://www.moypiano.com/resources/#archives"></a> </blockquote> Cheers RicB -- Richard Brekne RPT, N.P.T.F. UiB, Bergen, Norway <A HREF="mailto:rbrekne@broadpark.no">mailto:rbrekne@broadpark.no</A> <A HREF="http://home.broadpark.no/~rbrekne/ricmain.html">http://home.broadpark.no/~rbrekne/ricmain.html</A> <A HREF="http://www.hf.uib.no/grieg/personer/cv_RB.html">http://www.hf.uib.no/grieg/personer/cv_RB.html</A>  </html>