<HTML>In a message dated 3/3/2002 4:08:44 AM Pacific Standard Time, A440A@AOL.COM writes: <BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">Subj:Re: Chines and multi-piece rims Date:3/3/2002 4:08:44 AM Pacific Standard Time From:<A HREF="mailto:A440A@AOL.COM">A440A@AOL.COM</A> Reply-to:<A HREF="mailto:pianotech@ptg.org">pianotech@ptg.org</A> To:<A HREF="mailto:pianotech@ptg.org">pianotech@ptg.org</A> Sent from the Internet Del writes (and confuses me): >The continuous bent rim has certain manufacturing advantages but it has >no acoustical advantages that I am aware of. <BIG></BLOCKQUOTE><BIG><BIG> >So, having s.) Regards, Ed Foote (I have never installed a soundboard, or untwisted a case, but I have sure sat in front  Many</BIG></BIG>                                          Howdy Ed,         I've wondered at how one determines a case is twisted in the first place let alone straighten it. I've unstrung many that I thought had a peculiar plate flex when released from rim prison. I simply try to reinstall them without flex or stress.    I far prefer a laminated hardwood case. It must have superior impedance qualities over say soft wood rims but can't see why they'd have any advantage over a laid up hard wood (maple) rim. As long as there is a firm and rigid foundation for plate and board to attach to then all is well in my world. Does this make a lick of sense?     >>>best-----Dale>>>>>>>>>. </BIG></HTML>