I would guess that the Hamburg Steinway factory goes to great lengths--as much as anyone--to control the EMC at glue up. While I agree this is anecdotal and doesn't constitute a comprehensive study, it does speak to the issue of variability in panel response to compression style crowning and/or the difficulty in environmental control during manufacturing. Completely agree & doesn't 35 years of observations count for anything? If deductive reasoning doesn't count for something then we should stop paying attention. If I am not mistaken, these boards are hybrids and have crowned ribs as well suggesting that while, presumably, there is less reliance on panel compression, one still can't escape it in this particular method. I believe you are correct & the evidence is that the procedure has been going a long time. i.e. the 1905 Steinway C I rebuilt 2 years ago. Nice objective observing dude Dale David Love davidlovepianos at comcast.net www.davidlovepianos.com **************The year's hottest artists on the red carpet at the Grammy Awards. Go to AOL Music. (http://music.aol.com/grammys?NCID=aolcmp00300000002565) -------------- next part -------------- An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20080213/d651a0e8/attachment-0001.html
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