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<P>Jim:</P>
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<P>I just want to thank you for the testing you have done on=
hammer shanks, and for the offer to do more testing of=
theories. As a life long "why" person I marvel at those=
who "don't care why it works as long as it works." This=
seems like a thirst for ignorance. </P>
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<P>I know setting up these experiments take time and money. =
Thanks for passing on to the rest of us your results.</P>
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<P>dave</P>
<P><BR>__________________________________________</P>
<P>David M. Porritt, RPT</P>
<P>Meadows School of the Arts</P>
<P>Southern Methodist University</P>
<P>Dallas, TX 75275</P>
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