After reading Davids S post I have to concur with what he says, and am left wondering how any of this can bear on your origional problem. And have the following comment to throw out.. A ball park regulation will allow letoff unless something is keeping the jack from moving far enough. I have to assume Alans rough regulation was good enough. I am left with the feeling that there is something that hasnt been said yet. Let me see if I have this right. You adjusted letoff /*and confirmed*/ letoff with the action out of the piano but upon insertion the hammers jam against the stings ? RicB I recopy (with line shifts) the origional querrie... -------------------- Chinese Steck grand. G4 will not let off, period. Checked and adjusted drop, letoff, blow, etc., etc. Increased drop, decreased letoff, whatever. It just would not cycle through and let off. Removed front punching to make sure aftertouch was more than enough: no help, hammer lifts into strings and it would go higher still. No foreign objects, excessive wear, or anything of that sort. There was the tiniest (and I mean tiniest) teeny, itty-bitty, puny, little thing that made all the difference in the world--more than you'd ever guess possible unless you've seen the effect. This ought to be a good and instructive puzzler, especially for people who are just learning grand regulation or preparing for the technical exam. What was it? -----------
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