Subject: Key dip Friends, While tuning a 1980 Wurlitzer studio piano today I noticed some of the bass hammers would damp the strings depending on how they were played. Letoff was fine, but there was too much keydip, resulting in the backchecks pushing the hammers into the strings after letoff. It appears to me that all other specs will be in the correct range if the keydip is reduced. Can this be done by shimming up the front rail of the key frame, if there are no shims to remove from under the balance rail? I've never tried this. I could put card punchings under all the front felt punchings, I know. Advice? Regards, Clyde Clyde Go for it. It will tell you if the regulation is indeed correct, and maybe eliminate the blocking. Paul C
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