<HTML><HTML> In a message dated 6/3/04 10:22:37 AM, roger.j@sasktel.net writes: <BLOCKQUOTE CITE STYLE="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; = MARGIN-RIGHT: 0px; PADDING-LEFT: 5px" TYPE="CITE">Do you have sufficien= t after touch? If the hammers have been filed, and the back rail has not been corrected, (46mm blow if my<= BR> memory is correct). This can be the cause of the problem. Dip should b= e 10mm. Key level through the centre section will also give the same problem.<BR= > Are the length of the loops the same as the old loops? This can significantly alter the spring tension. </BLOCKQUOTE> Thanks to all for your great suggestions.  Roger, you've given me a fe= w things to check.  There IS enough after touch, but I wonder if the l= oops are the same size.  They were certainly made of a different mater= ial, much thicker in diameter than the old loop.  I did move the hamme= r rail forward to the specs in the little blue book by Potter, but I don't r= ecall the distance.  I also levelled the keys and set the dip all to t= he specs listed in that book.  I just have the gut feeling that this is caused by something that I changed,= and not just wear and tear.  After all, this problem appeared en mass= e from the moment I put it all back together. PTG (PianoTunaGuy) </HTML>