I've learned (the hard way) that when there is uniform lost motion like that I always look at blow distance first. A couple of felt squares and a little Titebond are sure faster and easier than adjusting 88 capstans or lifter nuts if the blow is too big anyway. Alan Barnard Snuggin' 'em Up in Salem, MO Alan, If the action has lost motion, adding felt squares to shorten blow will increase lost motion ,not decrease. To be sure this can be time consuming on some piano actions--I.E. rocker capstans or "consolets "with those two piece keys , but correcting lost motion on an acro (the real style with the guided rail and pickup fingers) is a quick and easy task. Respectfully, Tom Driscoll
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