Depends on the thickness of the replacement punchings compared with the old ones. If the action was previously regulated properly and the new punching are the same thickness then there won't be any change. If the new punching are thicker then the dip and aftertouch will be reduced, if they're thinner vice versa. Since there is some wiggle room with aftertouch you may not notice any regulation problems if the new punching are relatively close. Nevertheless, the prudent thing to do is to check the key dip after the change. David Love www.davidlovepianos.com ----- Original Message ----- From: Steven Hopp <mailto:hoppsmusic at hotmail.com> To: pianotech at ptg.org Sent: Saturday, April 11, 2009 8:10 PM Subject: [pianotech] New FR bushings / Action Reg Effect List, I ordered a few sets of the crescendo FR straight and conical punchings. Assuming an action is in good regulation, what is the effect on that regulation of replacing the punchings now on the piano without changing anything else. I guess I'm wondering what changing key dip does to a decently regulated action. I have changed my models punching but I am not noticing much change. Thanks, Steven Hopp Midland,TX _____ Rediscover HotmailR: Get e-mail storage that grows with you. Check it out. <http://windowslive.com/RediscoverHotmail?ocid=TXT_TAGLM_WL_HM_Rediscover_St orage1_042009> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech_ptg.org/attachments/20090411/c25f8103/attachment-0001.html>
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