Stephen, Bill, John, Phil, and the rest of y'all: Seems from reading the essay posted (below) that there is a direct relationship between how far from the balance rail pin any eventual leads are (perhaps the center of all key mass is better ??) and the occurance of the breakpoint seperating soft/hard zones. At one point it is said: "moving the location of the lead moves the breakpoint (along the red line)" thoough there is no relationship (formula) given. I am wondering just what this might be. Its interesting that the use (or not) of leads changes absolutely nothing relative to the division between hard/soft play. Another point I am a bit confused on. In all cases, the balanced line has least slope, then the half balanced a bit more, and the non balanced has the most slope. And clearly until the breakpoint is reached the non balanced line gives the least acceleration for force. Yet at the same time the degree of increase in acceleration for same amounts of increase in force is greater for the non balanced line. This seems at odds with the idea that the key would be more difficult to control in the soft zones for the balanced key then the non balanced key. It would seem (intuitively) to me that one would have better control when the slope of the acceleration is slight. And this regardless of which zone we are in. > > > http://real.uwaterloo.ca/~sbirkett/inertia.pdf > > -- Richard Brekne RPT, N.P.T.F. UiB, Bergen, Norway mailto:rbrekne@broadpark.no http://home.broadpark.no/~rbrekne/ricmain.html http://www.hf.uib.no/grieg/personer/cv_RB.html
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