<HTML style="FONT-SIZE: medium; FONT-FAMILY: AGaramond Bold"><HEAD> <META http-equiv=Content-Type content="text/html; charset=windows-1251"> <META content="MSHTML 6.00.2800.1522" name=GENERATOR></HEAD> <BODY> <P> <DIV>John Ross said: "I'm installing a new action in an upright. I need to find the "sweet" spot up at C88 to determine how long to cut the shanks (determine strike point). Doing this on a grand piano is so easy by sliding the action in and out a bit and the hammer assembly can be glued nice and firm for good sound production."</DIV> <DIV> </DIV> <DIV>Hmmm? The only problem with that is that the 'set screw' would add mass, which would have an effect on the duration time of the hammer contact. I think I'd opt for the extra hammer butt with the set screw on it. That way the "mass" would be less of a factor. Just a thought.<G> </DIV> <DIV> </DIV> <DIV> </DIV> <DIV>Joe Garrett, R.P.T. (Oregon)</DIV> <DIV>Captain, Tool Police</DIV> <DIV>Squares R I</DIV> <DIV> </DIV> <DIV> </DIV> <P></P></BODY></HTML>