In a message dated 97-04-13 11:13:10 EDT, Fred Sturm writes: > Is it possible > too little friction might adversely affect repetition? Greater friction in the hammer flange and (especially) repetition lever centers causes (or allows) the spring to be set tighter for the same rise rate, which causes the jack to fly back under the knuckle sooner, increasing repetition speed. Also, another place to look is the shape of the hammer tail. Too tight an arc or one which tucks under too much, and it will catch too easily on the way up, causing you to have to check lower. Too little and the contact point is the very end of the heel, causing bad checking. Sometimes just rounding the last little bit of the tail causes better checking. Bob Davis
This PTG archive page provided courtesy of Moy Piano Service, LLC