Will, I glad you posted this. Faced with a couple of challenging recalcitrant poorly rendering grands in the last couple weeks, I came up with a movement similar to what you describe...Lower the pitch by moving the pin move the pin much more than I normally do, then slowly come up to, but not over the pitch. If I overshot, do it all again, but coming down was way too chancy and I avoided it except for tiny nudges south. With these poorly rendering items, they just would not tolerate any significant downward pin and pitch motion. Didn't make sense to me at first, but the stability was greatly improved. I'm a lefty, but I tune right handed mostly, and was doing this movement right handed. You describe what you think the pin is doing. In my experience, at least on these recalcitrantly rendering ones, the front segment was also highly involved. I say this, because previously, when I came from above, lowering the pin to target, 10 minutes later, despite my normal rapid fire mf key strikes followed by strong blows, the front segment slowly gave way and continued dropping. Now maybe it dropped because the CCW rotation of the pin to what seemed like the target, let the pin relax back to neutral, slackening the front segment. I guess if I were a front segment hanging up on understring felt and other nasties, CW motion of the pin would force me over the felt whether I liked it or not, whereas CCW rotation of the pin would let me have my own ornery recalitrant mind. Does anyone know whether when the full pin, bottom & top,is in motion, whether the bottom has caught up to the top, or whether, depending on the block and block torque, the bottom is still dragging somewhat behind the pin top as the pitch is raised? Jim Ialeggio -- Jim Ialeggio jim at grandpianosolutions.com 978 425-9026 Shirley Center, MA
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