<html> <body> The following was Ron Nossman's response to Mike Jorgenson At 10:48 AM 4/8/2004 -0500, Ron Nossman wrote: <blockquote type=cite class=cite cite><blockquote type=cite class=cite cite>My experience with our D was a definite perceptible improvement in sustain, power, and clarity to some notes from taping once judiciously/gently down on every bridge pin in the killer octave.   On some strings, the tuning pitch dropped three or more BPS, on others it had no affect. -Mike Jorgensen</blockquote> By tapping the pins, you effectively seated the strings with the rough equivalent of a 20 pound weight courtesy of the friction from the offset angle. Yes, I expect it did sound cleaner. Ron N</blockquote> So we know it can work sometimes. Maybe the pin moved down, dragging the string along.  Maybe the shock of the tap overcame friction of the abraded and notched pin, to allow the string to return to its more neutral position.  We don't know which of the numerous scenarios we have recently discussed is active in this piano.  Ron has, at various times, seemed to accept tapping as a solution, and at other times, not.  My continued discomfort with these kinds of questions (or observations) and answers (or explanations) is that both are too general to allow the relevant subtleties to be appreciated, or retained. David Skolnik</body> </html>