Having the underlevers (u/l) parallel at rest would still add sliding friction only it would also be crushing the corner of the felt when lifted. As far as the magic line goes, it might look good on paper but has limited effect. You might say it is the difference between Theory and Practice. The difference between Theory and Practice is that in Theory there is no difference but in Practice there is. I shoot for the least friction and have relieved the friction which felt is at the key front by simply altering the angle of the u/l's. The least amount of sliding friction is when the u/l is lifted to parallel with the keybed. Regards, Jon Page ____________________________ I also like to make the arcs described by key and underlever share some of that magic line thinking. I suppose minimal slide would require that the contact point be on the magic line at half stroke, but I question whether it makes much difference if it hits the line at the end. It seems that having the underlever horizontal when at rest would apply the maximum weight on the string, and cause the sliding action to less than that which occurs when the underlever is sloping down. I don't know that there is room to lower the tray that much in most cases, so I also often leave them as Jon mentioned. Does anybody smooth the wooden contact point on the underlevers with, say, 400 grit paper and a spray of Teflon ?? Maybe, even burnished graphite?? Just asking,wondering if there is anybody else out there that has run out of things to try........ Regards, Ed Foote RPT
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