<div>Any gain in touchweight is a product of a reduction of friction or a gain in leverage, Both of which can happen when aligning to the lines of convergence. (Did I miss any other things?) Friction is measurable and has been eliminated so that leaves one thing.
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<div>I repeat, the load arm of the wippen is to the jack center pin. The jack is only a transitory post and is not a lever. Please define what the word "jack" means in this case if it is not what I say.</div>
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<div>Keith Roberts<br> </div>
<div><span class="gmail_quote">On 10/31/07, <b class="gmail_sendername">Jon Page</b> <<a href="mailto:jonpage@comcast.net">jonpage@comcast.net</a>> wrote:</span>
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<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">Any gain in touchweight while moving the wippen rail is a product of<br>aligning to<br>a line of convergence not ratio change. If ratio were the case then
<br>the further back<br>you move the rail beyond convergence, the better the touchweight still becomes.<br>--<br><br>Regards,<br><br>Jon Page<br></blockquote></div><br>