<html> Hi Avery,                 This may be helpful,  We rebush, and do all keybed work before doing the action analysis. If the hammers have been reshaped, we drop the hammer line, again this brings the old parts back to being close to their original position. ( Jack/knuckle position) Roger At 11:11 AM 8/21/02 -0500, you wrote: <blockquote type=cite class=cite cite>List, OK, here we go. People always say the only stupid question is an unasked one, so here's my first not-stupid question. :-) I think I understand how to do the individual key and shank/flange/ hammer measuring but what do I need to do about the verdigris when doing down & upweight measurements? Wouldn't I need to try and clean and repin before I do those? Or can I do just certain of the other measurements in order to determine which parts to order and then do the whole process? Or should I just call Bob at Pianotek and ask him what to do in relation to ordering parts? Of course, then I might feel obligated to order there. :-) It seems that I need to have the actual parts I'm going to use before all of this can be done. Am I correct? This is my first part of not understanding. I'm not very mathematically inclined so I'm still at the point of my "eyes glazing over" when I'm trying to wade through this and understand it. :-) Any advice appreciated. Regards, Avery</blockquote> </html>