I've had this happen recently too, David - on an M&H A. I was similarly confused and have yet to come up with an answer. I only did Stanwood and the 6mm dip gauge. What is the lever arm formula you use?<div><br>
</div><div>William R. Monroe</div><div><br></div><div><br></div><div><br><br><div class="gmail_quote">On Tue, Jan 15, 2013 at 7:56 PM, David Love <span dir="ltr"><<a href="mailto:davidlovepianos@comcast.net" target="_blank">davidlovepianos@comcast.net</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">When analyzing actions I've used both the gauge for measuring key travel<br>
versus hammer travel as well as the actual measuring and multiplying out the<br>
three separate lever arms. So far, they've been fairly close. However,<br>
today I was measuring a MH A and the gauge gave me a AR of 5.2 whereas the<br>
measuring of the three arms gave me 5.9. Curious. Assuming I'd measured<br>
incorrectly I remeasured several times and got the same result. When using<br>
the numbers to calculate via the Stanwood method the predicted balance<br>
weight/front weight/strike weight relationships the 5.9 was clearly the more<br>
accurate number. At a bit of a loss to explain it so, for the moment, all I<br>
can do is report it.<br>
<span class="HOEnZb"><font color="#888888"><br>
David Love<br>
<a href="http://www.davidlovepianos.com" target="_blank">www.davidlovepianos.com</a><br>
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</font></span></blockquote></div><br><br></div>