Slack Cable
I was given a 1976 C-22 back in 1998 that had no keel. I had a new keel installed. For two straight years, the keel cable broke resulting in the keel being down, which was OK, except I had a bit of a bar to navigate when leaving and returning to my slip. After the second replacement, I talked to the folks at Catalina Direct about what I might be doing wrong or what might be going wrong with the cable. I had been letting the cable go slack to get rid of the "singing." CD asked me where the cable was breaking and pretty much determined that it was breaking at the point where the cable went into the keel connecting rod. CD told me that it was flexing too much and thus weakening. After that, I always made sure that the cable was taut; I lowered it down all the way until it went slack, then cranked a turn or two. I never had the problem again.