Frequently when installing new Renner underlevers I run into the problem that the new sostenuto tabs extend farther out than the old ones. Moving the sostenuto rod in far enough to allow for proper regulation often results in clearance problems between the backchecks and the sostenuto rod itself. What is the best way to modify the original set up such that I don't create other problems. David Love davidlovepianos at comcast.net www.davidlovepianos.com
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