<!doctype html public "-//w3c//dtd html 4.0 transitional//en"> <html>   Erwinspiano@aol.com wrote: <blockquote TYPE=CITE>In a message dated 8/23/2003 7:04:54 AM Pacific Daylight Time, yardbird@vermontel.net writes:           Bill writes <blockquote TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">The only reason to adjust key inertia would be in meeting the requirements of top action inertia. So from a design standpoint, I'd say that top action inertia is the one to pay attention to. Key inertia is the tail on the dog which wags when its's happy with the weight of the rest of the dog.</blockquote>       Hi Bill         I agree and the only way I can think of to effectively overcome the problem and the key inertia is to lengthen the key  to get better leverage. A case in point are the old stwy players with the long keys. No it's not a practical solution but in theory it would increase leverage, reduce the amount of counter balancing lead weight.      Dale</blockquote> I suppose one could try and reduce the depth of the key and accomplish a little bit in the same direction....The greater the vertical difference between the key top/capstan and the balance rail pin the more horizontal deflection of the forces involved. Longer keys do more or less the same by decreasing the angle beween the three points.... or what ?   -- Richard Brekne RPT, N.P.T.F. UiB, Bergen, Norway <A HREF="mailto:rbrekne@broadpark.no">mailto:rbrekne@broadpark.no</A> <A HREF="http://home.broadpark.no/~rbrekne/ricmain.html">http://home.broadpark.no/~rbrekne/ricmain.html</A> <A HREF="http://www.hf.uib.no/grieg/personer/cv_RB.html">http://www.hf.uib.no/grieg/personer/cv_RB.html</A>  </html>