<HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=iso-8859-1"= > <META content="MSHTML 6.00.2900.2802" name=GENERATOR></HEAD> <BODY style="MARGIN: 4px 4px 1px; FONT: 10pt Tahoma"> <DIV>You will hear Vladimir Horowitz' Steinway double strike on his = recordings occasionally....another piano</DIV> <DIV>w/ shallow dip. I don't recall which recordings of his, I heard this = on,</DIV> <DIV>but I do recall hearing on some of them. </DIV> <DIV> </DIV> <DIV>With a shallow dip, any variation in hammer tail filing, check = alignment might be very critical. Even if the pianist does r= eally bottom the key, there's likely to be all sorts of misses in the = tail/check interface that is normally taken care of by the deeper = dip. (.400" for S&S now, I believe.)</DIV> <DIV> </DIV> <DIV>Richard</DIV></BODY></HTML>