<html> <body> It can be rather enlightening regarding your technique to push down the damper pedal and play all the keys loudly (test blows) with your flat hands several times and then check stability.  Made me change my technique and you can do that to a piano I have tuned and have nothing move.  Moving the piano doesn't really bother them either.  Climate change does though that is a different issue... I recommend doing that to pianos you are tuning the first time and especially after the first pitch-raise pass.  That extra loud vibration going on throughout the board can help distribute some tension back behind the bridge.  Especially on older rusty pianos you may find that is will help do that.  The other is to rub each string with a maple hammer shank or better, a notched brass rod pulling away from the bridge.  Don't push down so hard up close to the bridge that you damage the bridge-capping. Andrew Anderson At 09:10 AM 4/24/2007, you wrote: <blockquote type=cite class=cite cite=""> Jessica, I think that if the grand piano is unstable after being moved, supposing the climate is the same in both locations,  it is because of the vibration caused by rolling it over that old, less than perfectly smooth church floor.  I have yet to see a piano equipped with shock absorbers in the legs.  A piano truck helps though. <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /> Respectfully,   Chris Rawson,   <a href="http://www.key-leveling.com/" eudora="autourl"> www.key-leveling.com</a></blockquote></body> </html>