<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "> <br><div><div>On Sep 30, 2008, at 8:46 AM, Fenton Murray wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><p style="margin: 0.0px 0.0px 0.0px 0.0px"><font face="Helvetica" size="5" style="font: 16.0px Helvetica">If you have heavy hammers, or a high action ratio, or even worse both, you will start to end up with too much lead in the key unless you are using assist springs.</font></p></blockquote>And assist springs, even the adjustable,good kind, have never felt as satisfying to me as an action with the ideal hammer weight, action ratio, balance weight, and front weights, and regulated well: by feel, by the "sweet spot," where the action feels its most "buttery" and responsive.</div><div>On a well-made action that sweet spot falls within very narrow parameters of distance and weight. Here are some of my ideal parameters:</div><div>-action ratio: 5.5-5.7</div><div>-balance weight: 37-39</div><div>-blow distance: 46mm MINIMUM - 48mm</div><div>-key travel: 10.2-10.5mm</div><div><blockquote type="cite"><p style="margin: 0.0px 0.0px 0.0px 0.0px"><font face="Helvetica" size="5" style="font: 16.0px Helvetica"> These actions are not going to 'feel' right even though they may have great numbers. I don't know any way too measure this easily with weights at the key board, but<span class="Apple-style-span" style="font-size: 19px; "> I have become pretty good at feeling it through all the great mistakes I've made</span>.</font></p></blockquote>As Erwin says, zzzzactly. You get to a point where your hands, your ears, your feeling sense, your eyes, your perceptions, are the vast and fundamental basis of any diagnosis. It's a quick, intuitive process, ratified and focused by testing with the Stanwood protocols, and it works like magic. When the change is made the client is ecstatic.</div><div>David A. <br><blockquote type="cite"> <p style="margin: 0.0px 0.0px 0.0px 0.0px"><font face="Helvetica" size="5" style="font: 16.0px Helvetica">Respectfully,</font></p> <p style="margin: 0.0px 0.0px 0.0px 0.0px"><font face="Helvetica" size="5" style="font: 16.0px Helvetica">Fenton</font></p> </blockquote></div><br></body></html>