This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Gravity works better to keep the tails too low too long so the = repetition lever miss fires and the backcheck locks it all up. I think = you'll find an even better explanation from Jim Ellis in the archives. I = think also Ric Brekne had some interesting things to say as well at that = time. It was about six or eight months ago if my memory is functioning. = This phenom can be associated with loose rep centers or too weak a = spring or hammers too high off the cushion at rest. The old metal = "bridle" they used to put on wippens kept it from happening. Also if = your hammers are too heavy and the action ratio too low and the the key = dip too deep you can easily get this problem on hard fast repetition low = in the key dip. One fix is to raise the stack in the back so lowering it = makes it worse or more likely. Chris Solliday. ----- Original Message -----=20 From: Mark Cramer=20 To: College and University Technicians=20 Sent: Friday, July 22, 2005 3:06 PM Subject: RE: [CAUT] Steinway stack height Just a slight caution regarding lowering the stack height only in the = back, it can result in the dreaded "repetition lock-up."=20 Chris Great discussion! Chris, can you explain "repetition lock-up" and how tilting the stack = back can cause it? thanks, Mark Cramer, Brandon University =20 ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/caut.php/attachments/da/ae/4a/c6/attachment.htm ---------------------- multipart/alternative attachment--
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