lloyds-
Those were my thoughts, exactly, when I first started using downriggers!
I started a similar thread where the essential points were:
1. Most folks don't think that the noise actually frightens fish, based on their experiences.
2. Some folks think it actually attracts them.
3. The noise still bothers the helll out of some people.
4. You can quiet some of the noise with clamped on dampeners of soft material, but the best solution is to.......
5 . Change out the steel wire for Spectra braided fishing line of similar test strength that makes no noise. (!)
I haven't done this yet, but probably will soon. I'm a little concerned with the possibility that the "rougher" braided plastic line will actually be more dangerous than the braided steel to your hands, should you accidently touch a line that is being reeled in or out---"the bandsaw effect!!! Haven't had any problem with the steel in this manner, but only because I haven't ever touched a moving/reeling wire. Maybe someone else has had an experience with this issue.
Here's a
LINK to the previous discussion.
Joe