<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=windows-1252" http-equiv="Content-Type"> </head> <body bgcolor="#ffffff" text="#000000"> You know, I'm not really sure exactly what all is happening at every impact. I don't think every impact makes the pin twist. There does seem to be a minimum amount of force necessary to move the pin in the block, and that varies on every piano. A very small impact might make the pitch go up or down slightly, but there is a certain amount of play just like with a traditional lever before the pin moves in the block. At this point, I don't feel the pin moving in the block like I do with a traditional lever. I don't think you're really supposed to either since the impact almost makes it impossible to. You have to use it a lot to know how much the pin is moving. The way I became comfortable with it was by just using it and testing with hard blows to make certain it was stable. Being more familiar with it now, I don't test blow as hard. I have gone back and checked pianos for stability. No problem there. I began using it on day two for fine tuning, but I had used a Mehaffey lever before. It did take at least 20-30 minutes longer at first, but my first few pianos all needed pitch raises and tunings, so that helped a lot. Keep in mind that since I've only used it four months, the above description is totally subject to change. I might be saying something different a couple years from now. :) JF Cy Shuster wrote: <blockquote cite="mid062201c7002d$3c681190$6549a8c0@BUSTER" type="cite">Since every impact should twist the entire pin, stability is said to be easier to achieve. </blockquote> </body> </html>