<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; = charset=iso-8859-1"> <META content="MSHTML 6.00.2600.0" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT size=2>Though it's true that lower inertia allows for a = higher balance weight, I probably would not opt for a BW of 45 g unless it was requested that the action be on the heavy side.  I would consider a = 40 g BW to be a bit meaty (37 - 38 g is my normal default), 45 g is pushing the envelope, for me anyway.</FONT></DIV> <DIV><FONT size=2></FONT> </DIV> <DIV><FONT size=2>David Love  </FONT></DIV> <DIV><FONT size=2></FONT> </DIV> <DIV><FONT size=2></FONT> </DIV> <BLOCKQUOTE style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; = BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: = black"><B>From:</B> <A title=Erwinspiano@AOL.COM href="mailto:Erwinspiano@AOL.COM">Erwinspiano@AOL.COM</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A = title=pianotech@ptg.org href="mailto:pianotech@ptg.org">pianotech@ptg.org</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> July 12, 2002 7:25 = PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Lighter or Heavier = ?</DIV> <DIV><BR></DIV><FONT face=arial,helvetica><FONT lang=0 = face="Times New Roman" size=3 FAMILY="SERIF">In a message dated 7/12/2002 4:20:20 PM = Pacific Daylight Time, <A = href="mailto:Richard.Brekne@grieg.uib.no">Richard.Brekne@grieg.uib.no</= A> writes:<BR><BR></FONT><FONT lang=0 style="BACKGROUND-COLOR: = #ffffff" face=Arial color=#000000 size=3 FAMILY="SANSSERIF"><BR> <BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px = solid; MARGIN-RIGHT: 0px" TYPE="CITE">Subj:<B>Re: Lighter or Heavier ? </B><BR>Date:7/12/2002 = 4:20:20 PM Pacific Daylight Time<BR>From:<A = href="mailto:Richard.Brekne@grieg.uib.no">Richard.Brekne@grieg.uib.no</= A><BR>Reply-to:<A href="mailto:pianotech@ptg.org">pianotech@ptg.org</A><BR>To:<A href="mailto:pianotech@ptg.org">pianotech@ptg.org</A><BR>Sent from = the Internet <BR><BR>        Hey Ric</BLOCKQUOTE><BR><BR></FONT><FONT lang=0 = style="BACKGROUND-COLOR: #ffffff" face="Times New Roman" color=#000000 size=3 FAMILY="SERIF">       I followed this = only briefly. Bussssy week. Oh my goodness! Any way There is an experience = I've had a few times with some actions where the key ratios and action ratios = were really good. Without getting into many measurements just let me say = that the effect was that even though static down weights approached 60 down on = my Symphony Stwy D (1940) and the upweights were a nice snappy 28-30. No = one has ever complained about the touch as being heavy. <BR>   John = O' Connor played it a time or two as well as others. and never a = complaint about the touch being heavy.  Seems to handle rapid passage work = effortlessly. It has some lead closer to the balance rail as it's a accelerated action.      <BR>     = I've also learned  from installing new key sets with corrected key ratios = that less lead is used and similar results are attained. I believe  some = lead is required  to give the piansit some semblance of  a "the = normal feel" related to inertia and that some inertia IMO is desirable in a piano = action. Physics says were going to have some like it or not but is better = managed with efficient leverages.  When some of these systems are right it's = like a supercharged V-8.<BR>  My point is that the down weight upweight discussion takes on an entirely different parameters when things are = set up right as opposed to the funky key and action geometry we deal with day = in and out. Bottom line is that some action.key systems static weights may = seem high ( 60 over 30 ) but the dynamic effect when the keys are in motion = tells an entirely different and pleasant story.<BR>  Does that make sense = to any one but me?<BR>     >>>>Dale Erwin>>>>>>></FONT><FONT lang=0 style="BACKGROUND-COLOR: #ffffff" face=Arial color=#000000 = size=3 FAMILY="SANSSERIF"><BR></FONT><FONT lang=0 = style="BACKGROUND-COLOR: #ffffff" face=Arial color=#000000 size=2 FAMILY="SANSSERIF"><BR> <BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px = solid; MARGIN-RIGHT: 0px" TYPE="CITE"><BR>Thanks again Ed and Dave... and Stéphane for your interest<BR><BR>Seems like we have two ideas about how inertia = levels affect<BR>the touch of the piano. On the one hand we've said several<BR>times the the higher the inertia the slower the action<BR>repetition... and this has been equated loosely with = terms<BR>like sluggishness and then from this perspective, heaviness.<BR>Then on = the other hand a bit more lead is said to perhaps<BR>lead to a lighter "feel" = due to the help inertia lends ones<BR>the key is in = motion.<BR><BR>Interesting and to some degree conflicting lines of<BR>thinking. All and all it = leads one to think that Stanwood<BR>ideas are fine.... a great refinement in = relation to simple<BR>DW/UW measurements.. but perhaps should be refined = further<BR>to somehow put a number on inertia .... inertia = zones<BR>perhaps.<BR><BR>I agree tho in the answers you two kindly voluntered that<BR>DW/UW has = a direct relationship to "touch" or "feel", yet<BR>that these are also = affected by other relationships. <BR><BR>Thanks again... would have = liked to heard from others...<BR>but. :)<BR><BR>Cheers<BR>RicB<BR></BLOCKQUOTE><BR></FONT><FONT lang=0 style="BACKGROUND-COLOR: #ffffff" face="Times New Roman" = color=#000000 size=2 FAMILY="SERIF"><I><BR></BLOCKQUOTE></I></FONT></FONT></BODY></HTML>