<HTML style="FONT-SIZE: x-small; FONT-FAMILY: MS Sans Serif"><HEAD> <META http-equiv=Content-Type content="text/html; charset=windows-1251"> <META content="MSHTML 6.00.2900.2963" name=GENERATOR></HEAD> <BODY> <P> <DIV>Stephen,</DIV> <DIV>Will your study take into consideration the difference between Hexagon shanks vs Round shanks? I have noted a difference in, not only, tone, but repetition between these two difference kinds of shanks. Of course, my experience(s) are purely that, experiences and limited "shop" expermentation. Would definately be interested in this "up-coming study".</DIV> <DIV>Regards,</DIV> <DIV> </DIV> <DIV>Joseph Garrett, R.P.T.</DIV> <DIV>Captain, Tool Police</DIV> <DIV>Squares R I</DIV> <DIV> </DIV> <P></P></BODY></HTML>