<HTML><BODY BGCOLOR="#ffffff">Ric, The total keydip between top of keystroke and top of punching is somewhe= re near 20mm, depending on how hard you push(not enough punching to stop it)= .  Before I inserted cardboard punchings, there was probably a 10mm +/-= gap between key and punching when the key was depressed, once again dependi= ng on how hard one pushed.  It feels really odd. I am beginning to think that there is some structural abnormality--damag= e from a fall, or unbelievably bad craftsmanship.   I probably won't get back there until the new year.  My curiosity i= s getting the better of me.  I want to make it right for the customers,= who are incredibly gracious and patient.  They've only had the  p= iano for a year, and are fortunate to have a trade-up option and a warranty = from the store where they purchased it. Thanks for the use of your brain cells, Dave S. In a message dated 12/20/04 11:46:58 PM Pacific Standard Time, Richard.B= rekne@grieg.uib.no writes: <BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-= LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">Been reading back and forth= your replies to posts coming in on this, and cant help but wonder about thi= s gargantuan amount of air between where you say the key stops and the front= rail punchings.  20 mm is like a huge amount.... even 10 mm away from = the punchings is a ridiculously large amount.  I have a hard time under= standing that any of this can be accounted for by the points suggested so fa= r... not even in combination when it comes to it. Assuming you have even 5-6 mm of key travel, a 20 mm gap at the bottom o= f this travel means there is over 25 mm of space between the bottom of the k= ey and front punchings.  Or taking your lowest samples of 12 mm gaps...= a near usual amount of key travel (10 mm) means about the same... 22 mm. Key height would have to be well over 6-7 mm too high ... which you woul= d easily be noticed by the bottoms showing way over the top of the key slip.= ..which you havent noted so I can only assume thats not the case.  Conv= ersely... if you key bottoms are at all below the top of the key slip... the= n key height can not be more then a small amount too high.... far to little = to account for your stated problem. Off hand something sounds broken... and rather big time.  That said= , a couple basics to confirm for next time you check the piano. --Just how much key travel are you getting.  (should be around 10 m= m) --Just how much distance is there between the bottom of the keys and the= front rail punchings with the keys at rest. (should also be around 10 mm) --Where are the bottoms of the keys height wise in relation to the top o= f the key slip. (should be somewhere around 3 mm below the top of the key sl= ip... certainly no higher then that) --Check whether or not the keys are binding... simply remove the action = and see whether or not they can fall or be easily depressed a full 12 mm. Unless something is broken  .. about the only thing I can think of = that can account for such a large distance between the key bottoms and the f= ront punchings with the keys at rest is a combination of somewhat high keys = and nearly nothing for front punching thickness.  In which case this is= at least to some degree a separate problem for why you are not getting any = aftertouch with your stated 1 7/8 hammer blow. That, and the bobbling must b= e caused by some lack of key travel.   What could be happening here is that the keys are  binding on somet= hing, like the mortise in the balance rail holes, and at some time some toon= er tried to solve the problem of bobbling by removing most of the front punc= hing thickness and in general mucking up the regulation.  But 20 mm at = the bottom of key travel.... shheeeshh... thats hard to imagine. </BLOCKQUOTE> </HTML>