About five years ago I applied Protek CLP to the hammer flanges of the treble section of a 1966 Mason and Risch console piano that had some sluggishness in the hammers. I think I noticed some slight improvement, if I remember correctly, but as I have revisited the piano more or less annually the problem has become more severe. When I tuned it a year ago, working through the treble section past the dampers was almost an exercise in futility, so I determined that next time I saw the piano, I would make sure I had time to address the problem in a meaningful way. I tuned the piano today. Pulled the action first, repinned the hammer flanges on notes 79 to 88. Coming out of the piano, the hammers would not complete a full swing. Jacks were sluggish too, but I did not address them this time around. I had not lubricated the jacks in the past. The treble hammer flanges, until I repinned them, were worse than when I first visited the piano. I had to wonder if the CLP contributed to the deterioration of the action's performance over the five year term. I would think that the piano would be more or less stable at the age of 38 years. Any ideas? Floyd Gadd Manitoba chapter
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